788550040

素因数分解:

$2^3\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{19121}}^1$

素因数の和:20163

約数の個数: 32

約数和(自身を含む): 1776051360

約数和(自身を除く): 987501320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1031, 2062, 4124, 5155, 8248, 10310, 19121, 20620, 38242, 41240, 76484, 95605, 152968, 191210, 382420, 764840, 19713751, 39427502, 78855004, 98568755, 157710008, 197137510, 394275020, 788550040]

約数ペア:

[(1, 788550040), (2, 394275020), (4, 197137510), (5, 157710008), (8, 98568755), (10, 78855004), (20, 39427502), (40, 19713751), (1031, 764840), (2062, 382420), (4124, 191210), (5155, 152968), (8248, 95605), (10310, 76484), (19121, 41240), (20620, 38242)]