1989580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3209}}^1$

素因数の和:3249

約数の個数: 24

約数和(自身を含む): 4314240

約数和(自身を除く): 2324660

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 3209, 6418, 12836, 16045, 32090, 64180, 99479, 198958, 397916, 497395, 994790, 1989580]

約数ペア:

[(1, 1989580), (2, 994790), (4, 497395), (5, 397916), (10, 198958), (20, 99479), (31, 64180), (62, 32090), (124, 16045), (155, 12836), (310, 6418), (620, 3209)]