28864240

素因数分解:

$2^4\times 5^1\times {\mathrm{360803}}^1$

素因数の和:360816

約数の個数: 20

約数和(自身を含む): 67109544

約数和(自身を除く): 38245304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 360803, 721606, 1443212, 1804015, 2886424, 3608030, 5772848, 7216060, 14432120, 28864240]

約数ペア:

[(1, 28864240), (2, 14432120), (4, 7216060), (5, 5772848), (8, 3608030), (10, 2886424), (16, 1804015), (20, 1443212), (40, 721606), (80, 360803)]