20643040

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 54813024

約数和(自身を除く): 34169984

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 74, 80, 88, 110, 148, 160, 176, 185, 220, 296, 317, 352, 370, 407, 440, 592, 634, 740, 814, 880, 1184, 1268, 1480, 1585, 1628, 1760, 2035, 2536, 2960, 3170, 3256, 3487, 4070, 5072, 5920, 6340, 6512, 6974, 8140, 10144, 11729, 12680, 13024, 13948, 16280, 17435, 23458, 25360, 27896, 32560, 34870, 46916, 50720, 55792, 58645, 65120, 69740, 93832, 111584, 117290, 129019, 139480, 187664, 234580, 258038, 278960, 375328, 469160, 516076, 557920, 645095, 938320, 1032152, 1290190, 1876640, 2064304, 2580380, 4128608, 5160760, 10321520, 20643040]

約数ペア:

[(1, 20643040), (2, 10321520), (4, 5160760), (5, 4128608), (8, 2580380), (10, 2064304), (11, 1876640), (16, 1290190), (20, 1032152), (22, 938320), (32, 645095), (37, 557920), (40, 516076), (44, 469160), (55, 375328), (74, 278960), (80, 258038), (88, 234580), (110, 187664), (148, 139480), (160, 129019), (176, 117290), (185, 111584), (220, 93832), (296, 69740), (317, 65120), (352, 58645), (370, 55792), (407, 50720), (440, 46916), (592, 34870), (634, 32560), (740, 27896), (814, 25360), (880, 23458), (1184, 17435), (1268, 16280), (1480, 13948), (1585, 13024), (1628, 12680), (1760, 11729), (2035, 10144), (2536, 8140), (2960, 6974), (3170, 6512), (3256, 6340), (3487, 5920), (4070, 5072)]