920497220

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{254281}}^1$

素因数の和:254471

約数の個数: 24

約数和(自身を含む): 1943731608

約数和(自身を除く): 1023234388

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 254281, 508562, 1017124, 1271405, 2542810, 5085620, 46024861, 92049722, 184099444, 230124305, 460248610, 920497220]

約数ペア:

[(1, 920497220), (2, 460248610), (4, 230124305), (5, 184099444), (10, 92049722), (20, 46024861), (181, 5085620), (362, 2542810), (724, 1271405), (905, 1017124), (1810, 508562), (3620, 254281)]