199904516

素因数分解:

$2^2\times 7^3\times {\mathrm{145703}}^1$

素因数の和:145728

約数の個数: 24

約数和(自身を含む): 407971200

約数和(自身を除く): 208066684

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 145703, 291406, 582812, 1019921, 2039842, 4079684, 7139447, 14278894, 28557788, 49976129, 99952258, 199904516]

約数ペア:

[(1, 199904516), (2, 99952258), (4, 49976129), (7, 28557788), (14, 14278894), (28, 7139447), (49, 4079684), (98, 2039842), (196, 1019921), (343, 582812), (686, 291406), (1372, 145703)]