28914040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10181}}^1$

素因数の和:10263

約数の個数: 32

約数和(自身を含む): 65979360

約数和(自身を除く): 37065320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10181, 20362, 40724, 50905, 81448, 101810, 203620, 407240, 722851, 1445702, 2891404, 3614255, 5782808, 7228510, 14457020, 28914040]

約数ペア:

[(1, 28914040), (2, 14457020), (4, 7228510), (5, 5782808), (8, 3614255), (10, 2891404), (20, 1445702), (40, 722851), (71, 407240), (142, 203620), (284, 101810), (355, 81448), (568, 50905), (710, 40724), (1420, 20362), (2840, 10181)]