1257996620

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{70913}}^1$

素因数の和:71809

約数の個数: 24

約数和(自身を含む): 2644808544

約数和(自身を除く): 1386811924

約数列:

[1, 2, 4, 5, 10, 20, 887, 1774, 3548, 4435, 8870, 17740, 70913, 141826, 283652, 354565, 709130, 1418260, 62899831, 125799662, 251599324, 314499155, 628998310, 1257996620]

約数ペア:

[(1, 1257996620), (2, 628998310), (4, 314499155), (5, 251599324), (10, 125799662), (20, 62899831), (887, 1418260), (1774, 709130), (3548, 354565), (4435, 283652), (8870, 141826), (17740, 70913)]