20071880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16187}}^1$

素因数の和:16229

約数の個数: 32

約数和(自身を含む): 46621440

約数和(自身を除く): 26549560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16187, 32374, 64748, 80935, 129496, 161870, 323740, 501797, 647480, 1003594, 2007188, 2508985, 4014376, 5017970, 10035940, 20071880]

約数ペア:

[(1, 20071880), (2, 10035940), (4, 5017970), (5, 4014376), (8, 2508985), (10, 2007188), (20, 1003594), (31, 647480), (40, 501797), (62, 323740), (124, 161870), (155, 129496), (248, 80935), (310, 64748), (620, 32374), (1240, 16187)]