399071720

素因数分解:

$2^3\times 5^1\times {\mathrm{2269}}^1\times {\mathrm{4397}}^1$

素因数の和:6677

約数の個数: 32

約数和(自身を含む): 898511400

約数和(自身を除く): 499439680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2269, 4397, 4538, 8794, 9076, 11345, 17588, 18152, 21985, 22690, 35176, 43970, 45380, 87940, 90760, 175880, 9976793, 19953586, 39907172, 49883965, 79814344, 99767930, 199535860, 399071720]

約数ペア:

[(1, 399071720), (2, 199535860), (4, 99767930), (5, 79814344), (8, 49883965), (10, 39907172), (20, 19953586), (40, 9976793), (2269, 175880), (4397, 90760), (4538, 87940), (8794, 45380), (9076, 43970), (11345, 35176), (17588, 22690), (18152, 21985)]