20445580

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35251}}^1$

素因数の和:35289

約数の個数: 24

約数和(自身を含む): 44417520

約数和(自身を除く): 23971940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35251, 70502, 141004, 176255, 352510, 705020, 1022279, 2044558, 4089116, 5111395, 10222790, 20445580]

約数ペア:

[(1, 20445580), (2, 10222790), (4, 5111395), (5, 4089116), (10, 2044558), (20, 1022279), (29, 705020), (58, 352510), (116, 176255), (145, 141004), (290, 70502), (580, 35251)]