64557520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13229}}^1$

素因数の和:13303

約数の個数: 40

約数和(自身を含む): 152568360

約数和(自身を除く): 88010840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 13229, 26458, 52916, 66145, 105832, 132290, 211664, 264580, 529160, 806969, 1058320, 1613938, 3227876, 4034845, 6455752, 8069690, 12911504, 16139380, 32278760, 64557520]

約数ペア:

[(1, 64557520), (2, 32278760), (4, 16139380), (5, 12911504), (8, 8069690), (10, 6455752), (16, 4034845), (20, 3227876), (40, 1613938), (61, 1058320), (80, 806969), (122, 529160), (244, 264580), (305, 211664), (488, 132290), (610, 105832), (976, 66145), (1220, 52916), (2440, 26458), (4880, 13229)]