286989740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{1087}}^1$

素因数の和:1446

約数の個数: 48

約数和(自身を含む): 619272192

約数和(自身を除く): 332282452

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 307, 430, 614, 860, 1087, 1228, 1535, 2174, 3070, 4348, 5435, 6140, 10870, 13201, 21740, 26402, 46741, 52804, 66005, 93482, 132010, 186964, 233705, 264020, 333709, 467410, 667418, 934820, 1334836, 1668545, 3337090, 6674180, 14349487, 28698974, 57397948, 71747435, 143494870, 286989740]

約数ペア:

[(1, 286989740), (2, 143494870), (4, 71747435), (5, 57397948), (10, 28698974), (20, 14349487), (43, 6674180), (86, 3337090), (172, 1668545), (215, 1334836), (307, 934820), (430, 667418), (614, 467410), (860, 333709), (1087, 264020), (1228, 233705), (1535, 186964), (2174, 132010), (3070, 93482), (4348, 66005), (5435, 52804), (6140, 46741), (10870, 26402), (13201, 21740)]