78502840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{150967}}^1$

素因数の和:150991

約数の個数: 32

約数和(自身を含む): 190219680

約数和(自身を除く): 111716840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 150967, 301934, 603868, 754835, 1207736, 1509670, 1962571, 3019340, 3925142, 6038680, 7850284, 9812855, 15700568, 19625710, 39251420, 78502840]

約数ペア:

[(1, 78502840), (2, 39251420), (4, 19625710), (5, 15700568), (8, 9812855), (10, 7850284), (13, 6038680), (20, 3925142), (26, 3019340), (40, 1962571), (52, 1509670), (65, 1207736), (104, 754835), (130, 603868), (260, 301934), (520, 150967)]