156397640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{558563}}^1$

素因数の和:558581

約数の個数: 32

約数和(自身を含む): 402166080

約数和(自身を除く): 245768440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 558563, 1117126, 2234252, 2792815, 3909941, 4468504, 5585630, 7819882, 11171260, 15639764, 19549705, 22342520, 31279528, 39099410, 78198820, 156397640]

約数ペア:

[(1, 156397640), (2, 78198820), (4, 39099410), (5, 31279528), (7, 22342520), (8, 19549705), (10, 15639764), (14, 11171260), (20, 7819882), (28, 5585630), (35, 4468504), (40, 3909941), (56, 2792815), (70, 2234252), (140, 1117126), (280, 558563)]