65120560

素因数分解:

$2^4\times 5^1\times {\mathrm{814007}}^1$

素因数の和:814020

約数の個数: 20

約数和(自身を含む): 151405488

約数和(自身を除く): 86284928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 814007, 1628014, 3256028, 4070035, 6512056, 8140070, 13024112, 16280140, 32560280, 65120560]

約数ペア:

[(1, 65120560), (2, 32560280), (4, 16280140), (5, 13024112), (8, 8140070), (10, 6512056), (16, 4070035), (20, 3256028), (40, 1628014), (80, 814007)]