2788890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7151}}^1$

素因数の和:7174

約数の個数: 32

約数和(自身を含む): 7209216

約数和(自身を除く): 4420326

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 7151, 14302, 21453, 35755, 42906, 71510, 92963, 107265, 185926, 214530, 278889, 464815, 557778, 929630, 1394445, 2788890]

約数ペア:

[(1, 2788890), (2, 1394445), (3, 929630), (5, 557778), (6, 464815), (10, 278889), (13, 214530), (15, 185926), (26, 107265), (30, 92963), (39, 71510), (65, 42906), (78, 35755), (130, 21453), (195, 14302), (390, 7151)]