621310990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1061}}^1\times {\mathrm{1889}}^1$

素因数の和:2988

約数の個数: 32

約数和(自身を含む): 1156135680

約数和(自身を除く): 534824690

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 1061, 1889, 2122, 3778, 5305, 9445, 10610, 18890, 32891, 58559, 65782, 117118, 164455, 292795, 328910, 585590, 2004229, 4008458, 10021145, 20042290, 62131099, 124262198, 310655495, 621310990]

約数ペア:

[(1, 621310990), (2, 310655495), (5, 124262198), (10, 62131099), (31, 20042290), (62, 10021145), (155, 4008458), (310, 2004229), (1061, 585590), (1889, 328910), (2122, 292795), (3778, 164455), (5305, 117118), (9445, 65782), (10610, 58559), (18890, 32891)]