318132940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{387967}}^1$

素因数の和:388017

約数の個数: 24

約数和(自身を含む): 684375552

約数和(自身を除く): 366242612

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 387967, 775934, 1551868, 1939835, 3879670, 7759340, 15906647, 31813294, 63626588, 79533235, 159066470, 318132940]

約数ペア:

[(1, 318132940), (2, 159066470), (4, 79533235), (5, 63626588), (10, 31813294), (20, 15906647), (41, 7759340), (82, 3879670), (164, 1939835), (205, 1551868), (410, 775934), (820, 387967)]