123231355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2659}}^1$

素因数の和:2731

約数の個数: 32

約数和(自身を含む): 171601920

約数和(自身を除く): 48370565

約数列:

[1, 5, 13, 23, 31, 65, 115, 155, 299, 403, 713, 1495, 2015, 2659, 3565, 9269, 13295, 34567, 46345, 61157, 82429, 172835, 305785, 412145, 795041, 1071577, 1895867, 3975205, 5357885, 9479335, 24646271, 123231355]

約数ペア:

[(1, 123231355), (5, 24646271), (13, 9479335), (23, 5357885), (31, 3975205), (65, 1895867), (115, 1071577), (155, 795041), (299, 412145), (403, 305785), (713, 172835), (1495, 82429), (2015, 61157), (2659, 46345), (3565, 34567), (9269, 13295)]