168687080

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{26861}}^1$

素因数の和:27029

約数の個数: 32

約数和(自身を含む): 381977640

約数和(自身を除く): 213290560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 26861, 53722, 107444, 134305, 214888, 268610, 537220, 1074440, 4217177, 8434354, 16868708, 21085885, 33737416, 42171770, 84343540, 168687080]

約数ペア:

[(1, 168687080), (2, 84343540), (4, 42171770), (5, 33737416), (8, 21085885), (10, 16868708), (20, 8434354), (40, 4217177), (157, 1074440), (314, 537220), (628, 268610), (785, 214888), (1256, 134305), (1570, 107444), (3140, 53722), (6280, 26861)]