20607980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35531}}^1$

素因数の和:35569

約数の個数: 24

約数和(自身を含む): 44770320

約数和(自身を除く): 24162340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35531, 71062, 142124, 177655, 355310, 710620, 1030399, 2060798, 4121596, 5151995, 10303990, 20607980]

約数ペア:

[(1, 20607980), (2, 10303990), (4, 5151995), (5, 4121596), (10, 2060798), (20, 1030399), (29, 710620), (58, 355310), (116, 177655), (145, 142124), (290, 71062), (580, 35531)]