64448420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{28517}}^1$

素因数の和:28639

約数の個数: 24

約数和(自身を含む): 136544184

約数和(自身を除く): 72095764

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 28517, 57034, 114068, 142585, 285170, 570340, 3222421, 6444842, 12889684, 16112105, 32224210, 64448420]

約数ペア:

[(1, 64448420), (2, 32224210), (4, 16112105), (5, 12889684), (10, 6444842), (20, 3222421), (113, 570340), (226, 285170), (452, 142585), (565, 114068), (1130, 57034), (2260, 28517)]