621844280

素因数分解:

$2^3\times 5^1\times {\mathrm{2657}}^1\times {\mathrm{5851}}^1$

素因数の和:8519

約数の個数: 32

約数和(自身を含む): 1399915440

約数和(自身を除く): 778071160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2657, 5314, 5851, 10628, 11702, 13285, 21256, 23404, 26570, 29255, 46808, 53140, 58510, 106280, 117020, 234040, 15546107, 31092214, 62184428, 77730535, 124368856, 155461070, 310922140, 621844280]

約数ペア:

[(1, 621844280), (2, 310922140), (4, 155461070), (5, 124368856), (8, 77730535), (10, 62184428), (20, 31092214), (40, 15546107), (2657, 234040), (5314, 117020), (5851, 106280), (10628, 58510), (11702, 53140), (13285, 46808), (21256, 29255), (23404, 26570)]