12839240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4397}}^1$

素因数の和:4481

約数の個数: 32

約数和(自身を含む): 29290680

約数和(自身を除く): 16451440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 4397, 8794, 17588, 21985, 35176, 43970, 87940, 175880, 320981, 641962, 1283924, 1604905, 2567848, 3209810, 6419620, 12839240]

約数ペア:

[(1, 12839240), (2, 6419620), (4, 3209810), (5, 2567848), (8, 1604905), (10, 1283924), (20, 641962), (40, 320981), (73, 175880), (146, 87940), (292, 43970), (365, 35176), (584, 21985), (730, 17588), (1460, 8794), (2920, 4397)]