64647340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{44279}}^1$

素因数の和:44361

約数の個数: 24

約数和(自身を含む): 137622240

約数和(自身を除く): 72974900

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 44279, 88558, 177116, 221395, 442790, 885580, 3232367, 6464734, 12929468, 16161835, 32323670, 64647340]

約数ペア:

[(1, 64647340), (2, 32323670), (4, 16161835), (5, 12929468), (10, 6464734), (20, 3232367), (73, 885580), (146, 442790), (292, 221395), (365, 177116), (730, 88558), (1460, 44279)]