31311930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80287}}^1$

素因数の和:80310

約数の個数: 32

約数和(自身を含む): 80930304

約数和(自身を除く): 49618374

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 80287, 160574, 240861, 401435, 481722, 802870, 1043731, 1204305, 2087462, 2408610, 3131193, 5218655, 6262386, 10437310, 15655965, 31311930]

約数ペア:

[(1, 31311930), (2, 15655965), (3, 10437310), (5, 6262386), (6, 5218655), (10, 3131193), (13, 2408610), (15, 2087462), (26, 1204305), (30, 1043731), (39, 802870), (65, 481722), (78, 401435), (130, 240861), (195, 160574), (390, 80287)]