38415640

素因数分解:

$2^3\times 5^1\times {\mathrm{977}}^1\times {\mathrm{983}}^1$

素因数の和:1971

約数の個数: 32

約数和(自身を含む): 86611680

約数和(自身を除く): 48196040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 977, 983, 1954, 1966, 3908, 3932, 4885, 4915, 7816, 7864, 9770, 9830, 19540, 19660, 39080, 39320, 960391, 1920782, 3841564, 4801955, 7683128, 9603910, 19207820, 38415640]

約数ペア:

[(1, 38415640), (2, 19207820), (4, 9603910), (5, 7683128), (8, 4801955), (10, 3841564), (20, 1920782), (40, 960391), (977, 39320), (983, 39080), (1954, 19660), (1966, 19540), (3908, 9830), (3932, 9770), (4885, 7864), (4915, 7816)]