313072270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{638923}}^1$

素因数の和:638944

約数の個数: 24

約数和(自身を含む): 655536024

約数和(自身を除く): 342463754

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 638923, 1277846, 3194615, 4472461, 6389230, 8944922, 22362305, 31307227, 44724610, 62614454, 156536135, 313072270]

約数ペア:

[(1, 313072270), (2, 156536135), (5, 62614454), (7, 44724610), (10, 31307227), (14, 22362305), (35, 8944922), (49, 6389230), (70, 4472461), (98, 3194615), (245, 1277846), (490, 638923)]