18283340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1087}}^1$

素因数の和:1154

約数の個数: 36

約数和(自身を含む): 39801216

約数和(自身を除く): 21517876

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1087, 1682, 2174, 3364, 4205, 4348, 5435, 8410, 10870, 16820, 21740, 31523, 63046, 126092, 157615, 315230, 630460, 914167, 1828334, 3656668, 4570835, 9141670, 18283340]

約数ペア:

[(1, 18283340), (2, 9141670), (4, 4570835), (5, 3656668), (10, 1828334), (20, 914167), (29, 630460), (58, 315230), (116, 157615), (145, 126092), (290, 63046), (580, 31523), (841, 21740), (1087, 16820), (1682, 10870), (2174, 8410), (3364, 5435), (4205, 4348)]