1615720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 3755520

約数和(自身を除く): 2139800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1303, 2606, 5212, 6515, 10424, 13030, 26060, 40393, 52120, 80786, 161572, 201965, 323144, 403930, 807860, 1615720]

約数ペア:

[(1, 1615720), (2, 807860), (4, 403930), (5, 323144), (8, 201965), (10, 161572), (20, 80786), (31, 52120), (40, 40393), (62, 26060), (124, 13030), (155, 10424), (248, 6515), (310, 5212), (620, 2606), (1240, 1303)]