31405356

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 83026944

約数和(自身を除く): 51621588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 107, 124, 186, 214, 263, 279, 321, 372, 428, 526, 558, 642, 789, 963, 1052, 1116, 1284, 1578, 1926, 2367, 3156, 3317, 3852, 4734, 6634, 8153, 9468, 9951, 13268, 16306, 19902, 24459, 28141, 29853, 32612, 39804, 48918, 56282, 59706, 73377, 84423, 97836, 112564, 119412, 146754, 168846, 253269, 293508, 337692, 506538, 872371, 1013076, 1744742, 2617113, 3489484, 5234226, 7851339, 10468452, 15702678, 31405356]

約数ペア:

[(1, 31405356), (2, 15702678), (3, 10468452), (4, 7851339), (6, 5234226), (9, 3489484), (12, 2617113), (18, 1744742), (31, 1013076), (36, 872371), (62, 506538), (93, 337692), (107, 293508), (124, 253269), (186, 168846), (214, 146754), (263, 119412), (279, 112564), (321, 97836), (372, 84423), (428, 73377), (526, 59706), (558, 56282), (642, 48918), (789, 39804), (963, 32612), (1052, 29853), (1116, 28141), (1284, 24459), (1578, 19902), (1926, 16306), (2367, 13268), (3156, 9951), (3317, 9468), (3852, 8153), (4734, 6634)]