157047640

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{9791}}^1$

素因数の和:10203

約数の個数: 32

約数和(自身を含む): 354274560

約数和(自身を除く): 197226920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 4010, 8020, 9791, 16040, 19582, 39164, 48955, 78328, 97910, 195820, 391640, 3926191, 7852382, 15704764, 19630955, 31409528, 39261910, 78523820, 157047640]

約数ペア:

[(1, 157047640), (2, 78523820), (4, 39261910), (5, 31409528), (8, 19630955), (10, 15704764), (20, 7852382), (40, 3926191), (401, 391640), (802, 195820), (1604, 97910), (2005, 78328), (3208, 48955), (4010, 39164), (8020, 19582), (9791, 16040)]