8128820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1873}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 20149248

約数和(自身を除く): 12020428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 1873, 2170, 3746, 4340, 7492, 9365, 13111, 18730, 26222, 37460, 52444, 58063, 65555, 116126, 131110, 232252, 262220, 290315, 406441, 580630, 812882, 1161260, 1625764, 2032205, 4064410, 8128820]

約数ペア:

[(1, 8128820), (2, 4064410), (4, 2032205), (5, 1625764), (7, 1161260), (10, 812882), (14, 580630), (20, 406441), (28, 290315), (31, 262220), (35, 232252), (62, 131110), (70, 116126), (124, 65555), (140, 58063), (155, 52444), (217, 37460), (310, 26222), (434, 18730), (620, 13111), (868, 9365), (1085, 7492), (1873, 4340), (2170, 3746)]