81275080

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{8951}}^1$

素因数の和:9189

約数の個数: 32

約数和(自身を含む): 183695040

約数和(自身を除く): 102419960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4540, 8951, 9080, 17902, 35804, 44755, 71608, 89510, 179020, 358040, 2031877, 4063754, 8127508, 10159385, 16255016, 20318770, 40637540, 81275080]

約数ペア:

[(1, 81275080), (2, 40637540), (4, 20318770), (5, 16255016), (8, 10159385), (10, 8127508), (20, 4063754), (40, 2031877), (227, 358040), (454, 179020), (908, 89510), (1135, 71608), (1816, 44755), (2270, 35804), (4540, 17902), (8951, 9080)]