20188287580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1\times {\mathrm{29017}}^1$

素因数の和:29878

約数の個数: 48

約数和(自身を含む): 43436463840

約数和(自身を除く): 23248176260

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 809, 860, 1618, 3236, 4045, 8090, 16180, 29017, 34787, 58034, 69574, 116068, 139148, 145085, 173935, 290170, 347870, 580340, 695740, 1247731, 2495462, 4990924, 6238655, 12477310, 23474753, 24954620, 46949506, 93899012, 117373765, 234747530, 469495060, 1009414379, 2018828758, 4037657516, 5047071895, 10094143790, 20188287580]

約数ペア:

[(1, 20188287580), (2, 10094143790), (4, 5047071895), (5, 4037657516), (10, 2018828758), (20, 1009414379), (43, 469495060), (86, 234747530), (172, 117373765), (215, 93899012), (430, 46949506), (809, 24954620), (860, 23474753), (1618, 12477310), (3236, 6238655), (4045, 4990924), (8090, 2495462), (16180, 1247731), (29017, 695740), (34787, 580340), (58034, 347870), (69574, 290170), (116068, 173935), (139148, 145085)]