20772270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{521}}^1$

素因数の和:977

約数の個数: 48

約数和(自身を含む): 54233712

約数和(自身を除く): 33461442

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 443, 521, 886, 1042, 1329, 1563, 2215, 2605, 2658, 3126, 3987, 4430, 4689, 5210, 6645, 7815, 7974, 9378, 13290, 15630, 19935, 23445, 39870, 46890, 230803, 461606, 692409, 1154015, 1384818, 2077227, 2308030, 3462045, 4154454, 6924090, 10386135, 20772270]

約数ペア:

[(1, 20772270), (2, 10386135), (3, 6924090), (5, 4154454), (6, 3462045), (9, 2308030), (10, 2077227), (15, 1384818), (18, 1154015), (30, 692409), (45, 461606), (90, 230803), (443, 46890), (521, 39870), (886, 23445), (1042, 19935), (1329, 15630), (1563, 13290), (2215, 9378), (2605, 7974), (2658, 7815), (3126, 6645), (3987, 5210), (4430, 4689)]