71772540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{170887}}^1$

素因数の和:170906

約数の個数: 48

約数和(自身を含む): 229673472

約数和(自身を除く): 157900932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 170887, 341774, 512661, 683548, 854435, 1025322, 1196209, 1708870, 2050644, 2392418, 2563305, 3417740, 3588627, 4784836, 5126610, 5981045, 7177254, 10253220, 11962090, 14354508, 17943135, 23924180, 35886270, 71772540]

約数ペア:

[(1, 71772540), (2, 35886270), (3, 23924180), (4, 17943135), (5, 14354508), (6, 11962090), (7, 10253220), (10, 7177254), (12, 5981045), (14, 5126610), (15, 4784836), (20, 3588627), (21, 3417740), (28, 2563305), (30, 2392418), (35, 2050644), (42, 1708870), (60, 1196209), (70, 1025322), (84, 854435), (105, 683548), (140, 512661), (210, 341774), (420, 170887)]