20357420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35099}}^1$

素因数の和:35137

約数の個数: 24

約数和(自身を含む): 44226000

約数和(自身を除く): 23868580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35099, 70198, 140396, 175495, 350990, 701980, 1017871, 2035742, 4071484, 5089355, 10178710, 20357420]

約数ペア:

[(1, 20357420), (2, 10178710), (4, 5089355), (5, 4071484), (10, 2035742), (20, 1017871), (29, 701980), (58, 350990), (116, 175495), (145, 140396), (290, 70198), (580, 35099)]