64221940

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{3307}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 135045792

約数和(自身を除く): 70823852

約数列:

[1, 2, 4, 5, 10, 20, 971, 1942, 3307, 3884, 4855, 6614, 9710, 13228, 16535, 19420, 33070, 66140, 3211097, 6422194, 12844388, 16055485, 32110970, 64221940]

約数ペア:

[(1, 64221940), (2, 32110970), (4, 16055485), (5, 12844388), (10, 6422194), (20, 3211097), (971, 66140), (1942, 33070), (3307, 19420), (3884, 16535), (4855, 13228), (6614, 9710)]