253396360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{904987}}^1$

素因数の和:905005

約数の個数: 32

約数和(自身を含む): 651591360

約数和(自身を除く): 398195000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 904987, 1809974, 3619948, 4524935, 6334909, 7239896, 9049870, 12669818, 18099740, 25339636, 31674545, 36199480, 50679272, 63349090, 126698180, 253396360]

約数ペア:

[(1, 253396360), (2, 126698180), (4, 63349090), (5, 50679272), (7, 36199480), (8, 31674545), (10, 25339636), (14, 18099740), (20, 12669818), (28, 9049870), (35, 7239896), (40, 6334909), (56, 4524935), (70, 3619948), (140, 1809974), (280, 904987)]