64255420

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{13331}}^1$

素因数の和:13581

約数の個数: 24

約数和(自身を含む): 135506448

約数和(自身を除く): 71251028

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4820, 13331, 26662, 53324, 66655, 133310, 266620, 3212771, 6425542, 12851084, 16063855, 32127710, 64255420]

約数ペア:

[(1, 64255420), (2, 32127710), (4, 16063855), (5, 12851084), (10, 6425542), (20, 3212771), (241, 266620), (482, 133310), (964, 66655), (1205, 53324), (2410, 26662), (4820, 13331)]