1645131720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:380

約数の個数: 256

約数和(自身を含む): 5443200000

約数和(自身を除く): 3798068280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 29, 30, 38, 40, 57, 58, 60, 76, 87, 95, 114, 116, 120, 139, 145, 152, 174, 179, 190, 228, 232, 278, 285, 290, 348, 358, 380, 417, 435, 456, 537, 551, 556, 570, 580, 695, 696, 716, 760, 834, 870, 895, 1074, 1102, 1112, 1140, 1160, 1390, 1432, 1653, 1668, 1740, 1790, 2085, 2148, 2204, 2280, 2641, 2685, 2755, 2780, 3306, 3336, 3401, 3480, 3580, 4031, 4170, 4296, 4408, 5191, 5282, 5370, 5510, 5560, 6612, 6802, 7160, 7923, 8062, 8265, 8340, 10203, 10382, 10564, 10740, 11020, 12093, 13205, 13224, 13604, 15573, 15846, 16124, 16530, 16680, 17005, 20155, 20406, 20764, 21128, 21480, 22040, 24186, 24881, 25955, 26410, 27208, 31146, 31692, 32248, 33060, 34010, 39615, 40310, 40812, 41528, 48372, 49762, 51015, 51910, 52820, 60465, 62292, 63384, 66120, 68020, 74643, 76589, 77865, 79230, 80620, 81624, 96744, 98629, 99524, 102030, 103820, 105640, 120930, 124405, 124584, 136040, 149286, 153178, 155730, 158460, 161240, 197258, 199048, 204060, 207640, 229767, 241860, 248810, 295887, 298572, 306356, 311460, 316920, 373215, 382945, 394516, 408120, 459534, 472739, 483720, 493145, 497620, 591774, 597144, 612712, 622920, 721549, 746430, 765890, 789032, 919068, 945478, 986290, 995240, 1148835, 1183548, 1418217, 1443098, 1479435, 1492860, 1531780, 1838136, 1890956, 1972580, 2164647, 2297670, 2363695, 2367096, 2836434, 2886196, 2958870, 2985720, 3063560, 3607745, 3781912, 3945160, 4329294, 4595340, 4727390, 5672868, 5772392, 5917740, 7091085, 7215490, 8658588, 9190680, 9454780, 10823235, 11345736, 11835480, 13709431, 14182170, 14430980, 17317176, 18909560, 21646470, 27418862, 28364340, 28861960, 41128293, 43292940, 54837724, 56728680, 68547155, 82256586, 86585880, 109675448, 137094310, 164513172, 205641465, 274188620, 329026344, 411282930, 548377240, 822565860, 1645131720]

約数ペア:

[(1, 1645131720), (2, 822565860), (3, 548377240), (4, 411282930), (5, 329026344), (6, 274188620), (8, 205641465), (10, 164513172), (12, 137094310), (15, 109675448), (19, 86585880), (20, 82256586), (24, 68547155), (29, 56728680), (30, 54837724), (38, 43292940), (40, 41128293), (57, 28861960), (58, 28364340), (60, 27418862), (76, 21646470), (87, 18909560), (95, 17317176), (114, 14430980), (116, 14182170), (120, 13709431), (139, 11835480), (145, 11345736), (152, 10823235), (174, 9454780), (179, 9190680), (190, 8658588), (228, 7215490), (232, 7091085), (278, 5917740), (285, 5772392), (290, 5672868), (348, 4727390), (358, 4595340), (380, 4329294), (417, 3945160), (435, 3781912), (456, 3607745), (537, 3063560), (551, 2985720), (556, 2958870), (570, 2886196), (580, 2836434), (695, 2367096), (696, 2363695), (716, 2297670), (760, 2164647), (834, 1972580), (870, 1890956), (895, 1838136), (1074, 1531780), (1102, 1492860), (1112, 1479435), (1140, 1443098), (1160, 1418217), (1390, 1183548), (1432, 1148835), (1653, 995240), (1668, 986290), (1740, 945478), (1790, 919068), (2085, 789032), (2148, 765890), (2204, 746430), (2280, 721549), (2641, 622920), (2685, 612712), (2755, 597144), (2780, 591774), (3306, 497620), (3336, 493145), (3401, 483720), (3480, 472739), (3580, 459534), (4031, 408120), (4170, 394516), (4296, 382945), (4408, 373215), (5191, 316920), (5282, 311460), (5370, 306356), (5510, 298572), (5560, 295887), (6612, 248810), (6802, 241860), (7160, 229767), (7923, 207640), (8062, 204060), (8265, 199048), (8340, 197258), (10203, 161240), (10382, 158460), (10564, 155730), (10740, 153178), (11020, 149286), (12093, 136040), (13205, 124584), (13224, 124405), (13604, 120930), (15573, 105640), (15846, 103820), (16124, 102030), (16530, 99524), (16680, 98629), (17005, 96744), (20155, 81624), (20406, 80620), (20764, 79230), (21128, 77865), (21480, 76589), (22040, 74643), (24186, 68020), (24881, 66120), (25955, 63384), (26410, 62292), (27208, 60465), (31146, 52820), (31692, 51910), (32248, 51015), (33060, 49762), (34010, 48372), (39615, 41528), (40310, 40812)]