7988560

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1711

約数の個数: 40

約数和(自身を含む): 18889416

約数和(自身を除く): 10900856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 1637, 2440, 3274, 4880, 6548, 8185, 13096, 16370, 26192, 32740, 65480, 99857, 130960, 199714, 399428, 499285, 798856, 998570, 1597712, 1997140, 3994280, 7988560]

約数ペア:

[(1, 7988560), (2, 3994280), (4, 1997140), (5, 1597712), (8, 998570), (10, 798856), (16, 499285), (20, 399428), (40, 199714), (61, 130960), (80, 99857), (122, 65480), (244, 32740), (305, 26192), (488, 16370), (610, 13096), (976, 8185), (1220, 6548), (1637, 4880), (2440, 3274)]