18244640

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1129}}^1$

素因数の和:1245

約数の個数: 48

約数和(自身を含む): 43568280

約数和(自身を除く): 25323640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1129, 1616, 2020, 2258, 3232, 4040, 4516, 5645, 8080, 9032, 11290, 16160, 18064, 22580, 36128, 45160, 90320, 114029, 180640, 228058, 456116, 570145, 912232, 1140290, 1824464, 2280580, 3648928, 4561160, 9122320, 18244640]

約数ペア:

[(1, 18244640), (2, 9122320), (4, 4561160), (5, 3648928), (8, 2280580), (10, 1824464), (16, 1140290), (20, 912232), (32, 570145), (40, 456116), (80, 228058), (101, 180640), (160, 114029), (202, 90320), (404, 45160), (505, 36128), (808, 22580), (1010, 18064), (1129, 16160), (1616, 11290), (2020, 9032), (2258, 8080), (3232, 5645), (4040, 4516)]