20801930

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67103}}^1$

素因数の和:67141

約数の個数: 16

約数和(自身を含む): 38651904

約数和(自身を除く): 17849974

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 67103, 134206, 335515, 671030, 2080193, 4160386, 10400965, 20801930]

約数ペア:

[(1, 20801930), (2, 10400965), (5, 4160386), (10, 2080193), (31, 671030), (62, 335515), (155, 134206), (310, 67103)]