21781502720

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:411

約数の個数: 288

約数和(自身を含む): 57360199680

約数和(自身を除く): 35578696960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 167, 173, 190, 248, 256, 304, 310, 320, 334, 346, 380, 496, 589, 608, 620, 640, 668, 692, 760, 835, 865, 992, 1178, 1216, 1240, 1280, 1336, 1384, 1520, 1670, 1730, 1984, 2356, 2432, 2480, 2672, 2768, 2945, 3040, 3173, 3287, 3340, 3460, 3968, 4712, 4864, 4960, 5177, 5344, 5363, 5536, 5890, 6080, 6346, 6574, 6680, 6920, 7936, 9424, 9920, 10354, 10688, 10726, 11072, 11780, 12160, 12692, 13148, 13360, 13840, 15865, 16435, 18848, 19840, 20708, 21376, 21452, 22144, 23560, 24320, 25384, 25885, 26296, 26720, 26815, 27680, 28891, 31730, 32870, 37696, 39680, 41416, 42752, 42904, 44288, 47120, 50768, 51770, 52592, 53440, 53630, 55360, 57782, 63460, 65740, 75392, 82832, 85808, 94240, 98363, 101536, 101897, 103540, 105184, 106880, 107260, 110720, 115564, 126920, 131480, 144455, 150784, 165664, 171616, 188480, 196726, 203072, 203794, 207080, 210368, 213760, 214520, 221440, 231128, 253840, 262960, 288910, 331328, 343232, 376960, 393452, 406144, 407588, 414160, 420736, 429040, 462256, 491815, 507680, 509485, 525920, 548929, 577820, 662656, 686464, 753920, 786904, 812288, 815176, 828320, 841472, 858080, 895621, 924512, 983630, 1015360, 1018970, 1051840, 1097858, 1155640, 1325312, 1372928, 1573808, 1630352, 1656640, 1716160, 1791242, 1849024, 1967260, 2030720, 2037940, 2103680, 2195716, 2311280, 2744645, 3147616, 3260704, 3313280, 3432320, 3582484, 3698048, 3934520, 4061440, 4075880, 4207360, 4391432, 4478105, 4622560, 5489290, 6295232, 6521408, 6626560, 6864640, 7164968, 7396096, 7869040, 8151760, 8782864, 8956210, 9245120, 10978580, 12590464, 13042816, 14329936, 15738080, 16303520, 17016799, 17565728, 17912420, 18490240, 21957160, 25180928, 26085632, 28659872, 31476160, 32607040, 34033598, 35131456, 35824840, 36980480, 43914320, 57319744, 62952320, 65214080, 68067196, 70262912, 71649680, 85083995, 87828640, 114639488, 125904640, 130428160, 136134392, 140525824, 143299360, 170167990, 175657280, 229278976, 272268784, 286598720, 340335980, 351314560, 544537568, 573197440, 680671960, 702629120, 1089075136, 1146394880, 1361343920, 2178150272, 2722687840, 4356300544, 5445375680, 10890751360, 21781502720]

約数ペア:

[(1, 21781502720), (2, 10890751360), (4, 5445375680), (5, 4356300544), (8, 2722687840), (10, 2178150272), (16, 1361343920), (19, 1146394880), (20, 1089075136), (31, 702629120), (32, 680671960), (38, 573197440), (40, 544537568), (62, 351314560), (64, 340335980), (76, 286598720), (80, 272268784), (95, 229278976), (124, 175657280), (128, 170167990), (152, 143299360), (155, 140525824), (160, 136134392), (167, 130428160), (173, 125904640), (190, 114639488), (248, 87828640), (256, 85083995), (304, 71649680), (310, 70262912), (320, 68067196), (334, 65214080), (346, 62952320), (380, 57319744), (496, 43914320), (589, 36980480), (608, 35824840), (620, 35131456), (640, 34033598), (668, 32607040), (692, 31476160), (760, 28659872), (835, 26085632), (865, 25180928), (992, 21957160), (1178, 18490240), (1216, 17912420), (1240, 17565728), (1280, 17016799), (1336, 16303520), (1384, 15738080), (1520, 14329936), (1670, 13042816), (1730, 12590464), (1984, 10978580), (2356, 9245120), (2432, 8956210), (2480, 8782864), (2672, 8151760), (2768, 7869040), (2945, 7396096), (3040, 7164968), (3173, 6864640), (3287, 6626560), (3340, 6521408), (3460, 6295232), (3968, 5489290), (4712, 4622560), (4864, 4478105), (4960, 4391432), (5177, 4207360), (5344, 4075880), (5363, 4061440), (5536, 3934520), (5890, 3698048), (6080, 3582484), (6346, 3432320), (6574, 3313280), (6680, 3260704), (6920, 3147616), (7936, 2744645), (9424, 2311280), (9920, 2195716), (10354, 2103680), (10688, 2037940), (10726, 2030720), (11072, 1967260), (11780, 1849024), (12160, 1791242), (12692, 1716160), (13148, 1656640), (13360, 1630352), (13840, 1573808), (15865, 1372928), (16435, 1325312), (18848, 1155640), (19840, 1097858), (20708, 1051840), (21376, 1018970), (21452, 1015360), (22144, 983630), (23560, 924512), (24320, 895621), (25384, 858080), (25885, 841472), (26296, 828320), (26720, 815176), (26815, 812288), (27680, 786904), (28891, 753920), (31730, 686464), (32870, 662656), (37696, 577820), (39680, 548929), (41416, 525920), (42752, 509485), (42904, 507680), (44288, 491815), (47120, 462256), (50768, 429040), (51770, 420736), (52592, 414160), (53440, 407588), (53630, 406144), (55360, 393452), (57782, 376960), (63460, 343232), (65740, 331328), (75392, 288910), (82832, 262960), (85808, 253840), (94240, 231128), (98363, 221440), (101536, 214520), (101897, 213760), (103540, 210368), (105184, 207080), (106880, 203794), (107260, 203072), (110720, 196726), (115564, 188480), (126920, 171616), (131480, 165664), (144455, 150784)]