11287720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{9103}}^1$

素因数の和:9145

約数の個数: 32

約数和(自身を含む): 26219520

約数和(自身を除く): 14931800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 9103, 18206, 36412, 45515, 72824, 91030, 182060, 282193, 364120, 564386, 1128772, 1410965, 2257544, 2821930, 5643860, 11287720]

約数ペア:

[(1, 11287720), (2, 5643860), (4, 2821930), (5, 2257544), (8, 1410965), (10, 1128772), (20, 564386), (31, 364120), (40, 282193), (62, 182060), (124, 91030), (155, 72824), (248, 45515), (310, 36412), (620, 18206), (1240, 9103)]