256796670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{658453}}^1$

素因数の和:658476

約数の個数: 32

約数和(自身を含む): 663721632

約数和(自身を除く): 406924962

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 658453, 1316906, 1975359, 3292265, 3950718, 6584530, 8559889, 9876795, 17119778, 19753590, 25679667, 42799445, 51359334, 85598890, 128398335, 256796670]

約数ペア:

[(1, 256796670), (2, 128398335), (3, 85598890), (5, 51359334), (6, 42799445), (10, 25679667), (13, 19753590), (15, 17119778), (26, 9876795), (30, 8559889), (39, 6584530), (65, 3950718), (78, 3292265), (130, 1975359), (195, 1316906), (390, 658453)]