807860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1343

約数の個数: 24

約数和(自身を含む): 1752576

約数和(自身を除く): 944716

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1303, 2606, 5212, 6515, 13030, 26060, 40393, 80786, 161572, 201965, 403930, 807860]

約数ペア:

[(1, 807860), (2, 403930), (4, 201965), (5, 161572), (10, 80786), (20, 40393), (31, 26060), (62, 13030), (124, 6515), (155, 5212), (310, 2606), (620, 1303)]