64928560

素因数分解:

$2^4\times 5^1\times {\mathrm{811607}}^1$

素因数の和:811620

約数の個数: 20

約数和(自身を含む): 150959088

約数和(自身を除く): 86030528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 811607, 1623214, 3246428, 4058035, 6492856, 8116070, 12985712, 16232140, 32464280, 64928560]

約数ペア:

[(1, 64928560), (2, 32464280), (4, 16232140), (5, 12985712), (8, 8116070), (10, 6492856), (16, 4058035), (20, 3246428), (40, 1623214), (80, 811607)]