20213069872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{2729}}^1$

素因数の和:3014

約数の個数: 80

約数和(自身を含む): 41109868800

約数和(自身を除く): 20896798928

約数列:

[1, 2, 4, 8, 16, 31, 62, 109, 124, 137, 218, 248, 274, 436, 496, 548, 872, 1096, 1744, 2192, 2729, 3379, 4247, 5458, 6758, 8494, 10916, 13516, 14933, 16988, 21832, 27032, 29866, 33976, 43664, 54064, 59732, 67952, 84599, 119464, 169198, 238928, 297461, 338396, 373873, 462923, 594922, 676792, 747746, 925846, 1189844, 1353584, 1495492, 1851692, 2379688, 2990984, 3703384, 4759376, 5981968, 7406768, 9221291, 11590063, 18442582, 23180126, 36885164, 40752157, 46360252, 73770328, 81504314, 92720504, 147540656, 163008628, 185441008, 326017256, 652034512, 1263316867, 2526633734, 5053267468, 10106534936, 20213069872]

約数ペア:

[(1, 20213069872), (2, 10106534936), (4, 5053267468), (8, 2526633734), (16, 1263316867), (31, 652034512), (62, 326017256), (109, 185441008), (124, 163008628), (137, 147540656), (218, 92720504), (248, 81504314), (274, 73770328), (436, 46360252), (496, 40752157), (548, 36885164), (872, 23180126), (1096, 18442582), (1744, 11590063), (2192, 9221291), (2729, 7406768), (3379, 5981968), (4247, 4759376), (5458, 3703384), (6758, 2990984), (8494, 2379688), (10916, 1851692), (13516, 1495492), (14933, 1353584), (16988, 1189844), (21832, 925846), (27032, 747746), (29866, 676792), (33976, 594922), (43664, 462923), (54064, 373873), (59732, 338396), (67952, 297461), (84599, 238928), (119464, 169198)]