255703890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{655651}}^1$

素因数の和:655674

約数の個数: 32

約数和(自身を含む): 660897216

約数和(自身を除く): 405193326

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 655651, 1311302, 1966953, 3278255, 3933906, 6556510, 8523463, 9834765, 17046926, 19669530, 25570389, 42617315, 51140778, 85234630, 127851945, 255703890]

約数ペア:

[(1, 255703890), (2, 127851945), (3, 85234630), (5, 51140778), (6, 42617315), (10, 25570389), (13, 19669530), (15, 17046926), (26, 9834765), (30, 8523463), (39, 6556510), (65, 3933906), (78, 3278255), (130, 1966953), (195, 1311302), (390, 655651)]