1256408080

素因数分解:

$2^4\times 5^1\times {\mathrm{15705101}}^1$

素因数の和:15705114

約数の個数: 20

約数和(自身を含む): 2921148972

約数和(自身を除く): 1664740892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15705101, 31410202, 62820404, 78525505, 125640808, 157051010, 251281616, 314102020, 628204040, 1256408080]

約数ペア:

[(1, 1256408080), (2, 628204040), (4, 314102020), (5, 251281616), (8, 157051010), (10, 125640808), (16, 78525505), (20, 62820404), (40, 31410202), (80, 15705101)]