131231412

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{280409}}^1$

素因数の和:280432

約数の個数: 36

約数和(自身を含む): 357242340

約数和(自身を除く): 226010928

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 280409, 560818, 841227, 1121636, 1682454, 2523681, 3364908, 3645317, 5047362, 7290634, 10094724, 10935951, 14581268, 21871902, 32807853, 43743804, 65615706, 131231412]

約数ペア:

[(1, 131231412), (2, 65615706), (3, 43743804), (4, 32807853), (6, 21871902), (9, 14581268), (12, 10935951), (13, 10094724), (18, 7290634), (26, 5047362), (36, 3645317), (39, 3364908), (52, 2523681), (78, 1682454), (117, 1121636), (156, 841227), (234, 560818), (468, 280409)]