85386820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{2309}}^1$

素因数の和:2404

約数の個数: 36

約数和(自身を含む): 183658860

約数和(自身を除く): 98272040

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1849, 2309, 3698, 4618, 7396, 9236, 9245, 11545, 18490, 23090, 36980, 46180, 99287, 198574, 397148, 496435, 992870, 1985740, 4269341, 8538682, 17077364, 21346705, 42693410, 85386820]

約数ペア:

[(1, 85386820), (2, 42693410), (4, 21346705), (5, 17077364), (10, 8538682), (20, 4269341), (43, 1985740), (86, 992870), (172, 496435), (215, 397148), (430, 198574), (860, 99287), (1849, 46180), (2309, 36980), (3698, 23090), (4618, 18490), (7396, 11545), (9236, 9245)]