3994280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 9140040

約数和(自身を除く): 5145760

約数列:

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

約数ペア:

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