20372805

素因数分解:

$3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1129}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 35432280

約数和(自身を除く): 15059475

約数列:

[1, 3, 5, 9, 15, 45, 401, 1129, 1203, 2005, 3387, 3609, 5645, 6015, 10161, 16935, 18045, 50805, 452729, 1358187, 2263645, 4074561, 6790935, 20372805]

約数ペア:

[(1, 20372805), (3, 6790935), (5, 4074561), (9, 2263645), (15, 1358187), (45, 452729), (401, 50805), (1129, 18045), (1203, 16935), (2005, 10161), (3387, 6015), (3609, 5645)]