19985220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{111029}}^1$

素因数の和:111044

約数の個数: 36

約数和(自身を含む): 60622380

約数和(自身を除く): 40637160

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 111029, 222058, 333087, 444116, 555145, 666174, 999261, 1110290, 1332348, 1665435, 1998522, 2220580, 3330870, 3997044, 4996305, 6661740, 9992610, 19985220]

約数ペア:

[(1, 19985220), (2, 9992610), (3, 6661740), (4, 4996305), (5, 3997044), (6, 3330870), (9, 2220580), (10, 1998522), (12, 1665435), (15, 1332348), (18, 1110290), (20, 999261), (30, 666174), (36, 555145), (45, 444116), (60, 333087), (90, 222058), (180, 111029)]