1736171480

素因数分解:

$2^3\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{21713}}^1$

素因数の和:23723

約数の個数: 32

約数和(自身を含む): 3908520000

約数和(自身を除く): 2172348520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1999, 3998, 7996, 9995, 15992, 19990, 21713, 39980, 43426, 79960, 86852, 108565, 173704, 217130, 434260, 868520, 43404287, 86808574, 173617148, 217021435, 347234296, 434042870, 868085740, 1736171480]

約数ペア:

[(1, 1736171480), (2, 868085740), (4, 434042870), (5, 347234296), (8, 217021435), (10, 173617148), (20, 86808574), (40, 43404287), (1999, 868520), (3998, 434260), (7996, 217130), (9995, 173704), (15992, 108565), (19990, 86852), (21713, 79960), (39980, 43426)]