664456460

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{203821}}^1$

素因数の和:203993

約数の個数: 24

約数和(自身を含む): 1403925936

約数和(自身を除く): 739469476

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 203821, 407642, 815284, 1019105, 2038210, 4076420, 33222823, 66445646, 132891292, 166114115, 332228230, 664456460]

約数ペア:

[(1, 664456460), (2, 332228230), (4, 166114115), (5, 132891292), (10, 66445646), (20, 33222823), (163, 4076420), (326, 2038210), (652, 1019105), (815, 815284), (1630, 407642), (3260, 203821)]