20811720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{173431}}^1$

素因数の和:173445

約数の個数: 32

約数和(自身を含む): 62435520

約数和(自身を除く): 41623800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 173431, 346862, 520293, 693724, 867155, 1040586, 1387448, 1734310, 2081172, 2601465, 3468620, 4162344, 5202930, 6937240, 10405860, 20811720]

約数ペア:

[(1, 20811720), (2, 10405860), (3, 6937240), (4, 5202930), (5, 4162344), (6, 3468620), (8, 2601465), (10, 2081172), (12, 1734310), (15, 1387448), (20, 1040586), (24, 867155), (30, 693724), (40, 520293), (60, 346862), (120, 173431)]