157202920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{561439}}^1$

素因数の和:561457

約数の個数: 32

約数和(自身を含む): 404236800

約数和(自身を除く): 247033880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 561439, 1122878, 2245756, 2807195, 3930073, 4491512, 5614390, 7860146, 11228780, 15720292, 19650365, 22457560, 31440584, 39300730, 78601460, 157202920]

約数ペア:

[(1, 157202920), (2, 78601460), (4, 39300730), (5, 31440584), (7, 22457560), (8, 19650365), (10, 15720292), (14, 11228780), (20, 7860146), (28, 5614390), (35, 4491512), (40, 3930073), (56, 2807195), (70, 2245756), (140, 1122878), (280, 561439)]