157403240

素因数分解:

$2^3\times 5^1\times {\mathrm{1783}}^1\times {\mathrm{2207}}^1$

素因数の和:4001

約数の個数: 32

約数和(自身を含む): 354516480

約数和(自身を除く): 197113240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1783, 2207, 3566, 4414, 7132, 8828, 8915, 11035, 14264, 17656, 17830, 22070, 35660, 44140, 71320, 88280, 3935081, 7870162, 15740324, 19675405, 31480648, 39350810, 78701620, 157403240]

約数ペア:

[(1, 157403240), (2, 78701620), (4, 39350810), (5, 31480648), (8, 19675405), (10, 15740324), (20, 7870162), (40, 3935081), (1783, 88280), (2207, 71320), (3566, 44140), (4414, 35660), (7132, 22070), (8828, 17830), (8915, 17656), (11035, 14264)]