31128705

素因数分解:

$3^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{761}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 56427624

約数和(自身を除く): 25298919

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 303, 405, 505, 761, 909, 1515, 2283, 2727, 3805, 4545, 6849, 8181, 11415, 13635, 20547, 34245, 40905, 61641, 76861, 102735, 230583, 308205, 384305, 691749, 1152915, 2075247, 3458745, 6225741, 10376235, 31128705]

約数ペア:

[(1, 31128705), (3, 10376235), (5, 6225741), (9, 3458745), (15, 2075247), (27, 1152915), (45, 691749), (81, 384305), (101, 308205), (135, 230583), (303, 102735), (405, 76861), (505, 61641), (761, 40905), (909, 34245), (1515, 20547), (2283, 13635), (2727, 11415), (3805, 8181), (4545, 6849)]