645428520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^3\times {\mathrm{449}}^1$

素因数の和:502

約数の個数: 256

約数和(自身を含む): 2371680000

約数和(自身を除く): 1726251480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 121, 132, 135, 165, 180, 198, 216, 220, 242, 264, 270, 297, 330, 360, 363, 396, 440, 449, 484, 495, 540, 594, 605, 660, 726, 792, 898, 968, 990, 1080, 1089, 1188, 1210, 1320, 1331, 1347, 1452, 1485, 1796, 1815, 1980, 2178, 2245, 2376, 2420, 2662, 2694, 2904, 2970, 3267, 3592, 3630, 3960, 3993, 4041, 4356, 4490, 4840, 4939, 5324, 5388, 5445, 5940, 6534, 6655, 6735, 7260, 7986, 8082, 8712, 8980, 9878, 10648, 10776, 10890, 11880, 11979, 12123, 13068, 13310, 13470, 14520, 14817, 15972, 16164, 16335, 17960, 19756, 19965, 20205, 21780, 23958, 24246, 24695, 26136, 26620, 26940, 29634, 31944, 32328, 32670, 35937, 39512, 39930, 40410, 43560, 44451, 47916, 48492, 49390, 53240, 53880, 54329, 59268, 59895, 60615, 65340, 71874, 74085, 79860, 80820, 88902, 95832, 96984, 98780, 108658, 118536, 119790, 121230, 130680, 133353, 143748, 148170, 159720, 161640, 162987, 177804, 179685, 197560, 217316, 222255, 239580, 242460, 266706, 271645, 287496, 296340, 325974, 355608, 359370, 434632, 444510, 479160, 484920, 488961, 533412, 543290, 592680, 597619, 651948, 666765, 718740, 814935, 889020, 977922, 1066824, 1086580, 1195238, 1303896, 1333530, 1437480, 1466883, 1629870, 1778040, 1792857, 1955844, 2173160, 2390476, 2444805, 2667060, 2933766, 2988095, 3259740, 3585714, 3911688, 4780952, 4889610, 5334120, 5378571, 5867532, 5976190, 6519480, 7171428, 7334415, 8964285, 9779220, 10757142, 11735064, 11952380, 14342856, 14668830, 16135713, 17928570, 19558440, 21514284, 23904760, 26892855, 29337660, 32271426, 35857140, 43028568, 53785710, 58675320, 64542852, 71714280, 80678565, 107571420, 129085704, 161357130, 215142840, 322714260, 645428520]

約数ペア:

[(1, 645428520), (2, 322714260), (3, 215142840), (4, 161357130), (5, 129085704), (6, 107571420), (8, 80678565), (9, 71714280), (10, 64542852), (11, 58675320), (12, 53785710), (15, 43028568), (18, 35857140), (20, 32271426), (22, 29337660), (24, 26892855), (27, 23904760), (30, 21514284), (33, 19558440), (36, 17928570), (40, 16135713), (44, 14668830), (45, 14342856), (54, 11952380), (55, 11735064), (60, 10757142), (66, 9779220), (72, 8964285), (88, 7334415), (90, 7171428), (99, 6519480), (108, 5976190), (110, 5867532), (120, 5378571), (121, 5334120), (132, 4889610), (135, 4780952), (165, 3911688), (180, 3585714), (198, 3259740), (216, 2988095), (220, 2933766), (242, 2667060), (264, 2444805), (270, 2390476), (297, 2173160), (330, 1955844), (360, 1792857), (363, 1778040), (396, 1629870), (440, 1466883), (449, 1437480), (484, 1333530), (495, 1303896), (540, 1195238), (594, 1086580), (605, 1066824), (660, 977922), (726, 889020), (792, 814935), (898, 718740), (968, 666765), (990, 651948), (1080, 597619), (1089, 592680), (1188, 543290), (1210, 533412), (1320, 488961), (1331, 484920), (1347, 479160), (1452, 444510), (1485, 434632), (1796, 359370), (1815, 355608), (1980, 325974), (2178, 296340), (2245, 287496), (2376, 271645), (2420, 266706), (2662, 242460), (2694, 239580), (2904, 222255), (2970, 217316), (3267, 197560), (3592, 179685), (3630, 177804), (3960, 162987), (3993, 161640), (4041, 159720), (4356, 148170), (4490, 143748), (4840, 133353), (4939, 130680), (5324, 121230), (5388, 119790), (5445, 118536), (5940, 108658), (6534, 98780), (6655, 96984), (6735, 95832), (7260, 88902), (7986, 80820), (8082, 79860), (8712, 74085), (8980, 71874), (9878, 65340), (10648, 60615), (10776, 59895), (10890, 59268), (11880, 54329), (11979, 53880), (12123, 53240), (13068, 49390), (13310, 48492), (13470, 47916), (14520, 44451), (14817, 43560), (15972, 40410), (16164, 39930), (16335, 39512), (17960, 35937), (19756, 32670), (19965, 32328), (20205, 31944), (21780, 29634), (23958, 26940), (24246, 26620), (24695, 26136)]