256784820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{99529}}^1$

素因数の和:99584

約数の個数: 48

約数和(自身を含む): 735725760

約数和(自身を除く): 478940940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 99529, 199058, 298587, 398116, 497645, 597174, 995290, 1194348, 1492935, 1990580, 2985870, 4279747, 5971740, 8559494, 12839241, 17118988, 21398735, 25678482, 42797470, 51356964, 64196205, 85594940, 128392410, 256784820]

約数ペア:

[(1, 256784820), (2, 128392410), (3, 85594940), (4, 64196205), (5, 51356964), (6, 42797470), (10, 25678482), (12, 21398735), (15, 17118988), (20, 12839241), (30, 8559494), (43, 5971740), (60, 4279747), (86, 2985870), (129, 1990580), (172, 1492935), (215, 1194348), (258, 995290), (430, 597174), (516, 497645), (645, 398116), (860, 298587), (1290, 199058), (2580, 99529)]