123958980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{688661}}^1$

素因数の和:688676

約数の個数: 36

約数和(自身を含む): 376009452

約数和(自身を除く): 252050472

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 688661, 1377322, 2065983, 2754644, 3443305, 4131966, 6197949, 6886610, 8263932, 10329915, 12395898, 13773220, 20659830, 24791796, 30989745, 41319660, 61979490, 123958980]

約数ペア:

[(1, 123958980), (2, 61979490), (3, 41319660), (4, 30989745), (5, 24791796), (6, 20659830), (9, 13773220), (10, 12395898), (12, 10329915), (15, 8263932), (18, 6886610), (20, 6197949), (30, 4131966), (36, 3443305), (45, 2754644), (60, 2065983), (90, 1377322), (180, 688661)]