31820840

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2099}}^1$

素因数の和:2489

約数の個数: 32

約数和(自身を含む): 71820000

約数和(自身を除く): 39999160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 2099, 3032, 3790, 4198, 7580, 8396, 10495, 15160, 16792, 20990, 41980, 83960, 795521, 1591042, 3182084, 3977605, 6364168, 7955210, 15910420, 31820840]

約数ペア:

[(1, 31820840), (2, 15910420), (4, 7955210), (5, 6364168), (8, 3977605), (10, 3182084), (20, 1591042), (40, 795521), (379, 83960), (758, 41980), (1516, 20990), (1895, 16792), (2099, 15160), (3032, 10495), (3790, 8396), (4198, 7580)]