19985580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{111031}}^1$

素因数の和:111046

約数の個数: 36

約数和(自身を含む): 60623472

約数和(自身を除く): 40637892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 111031, 222062, 333093, 444124, 555155, 666186, 999279, 1110310, 1332372, 1665465, 1998558, 2220620, 3330930, 3997116, 4996395, 6661860, 9992790, 19985580]

約数ペア:

[(1, 19985580), (2, 9992790), (3, 6661860), (4, 4996395), (5, 3997116), (6, 3330930), (9, 2220620), (10, 1998558), (12, 1665465), (15, 1332372), (18, 1110310), (20, 999279), (30, 666186), (36, 555155), (45, 444124), (60, 333093), (90, 222062), (180, 111031)]