68618860

素因数分解:

$2^2\times 5^1\times {\mathrm{1601}}^1\times {\mathrm{2143}}^1$

素因数の和:3753

約数の個数: 24

約数和(自身を含む): 144256896

約数和(自身を除く): 75638036

約数列:

[1, 2, 4, 5, 10, 20, 1601, 2143, 3202, 4286, 6404, 8005, 8572, 10715, 16010, 21430, 32020, 42860, 3430943, 6861886, 13723772, 17154715, 34309430, 68618860]

約数ペア:

[(1, 68618860), (2, 34309430), (4, 17154715), (5, 13723772), (10, 6861886), (20, 3430943), (1601, 42860), (2143, 32020), (3202, 21430), (4286, 16010), (6404, 10715), (8005, 8572)]