64387460

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{44101}}^1$

素因数の和:44183

約数の個数: 24

約数和(自身を含む): 137069016

約数和(自身を除く): 72681556

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 44101, 88202, 176404, 220505, 441010, 882020, 3219373, 6438746, 12877492, 16096865, 32193730, 64387460]

約数ペア:

[(1, 64387460), (2, 32193730), (4, 16096865), (5, 12877492), (10, 6438746), (20, 3219373), (73, 882020), (146, 441010), (292, 220505), (365, 176404), (730, 88202), (1460, 44101)]