81235620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451309}}^1$

素因数の和:451324

約数の個数: 36

約数和(自身を含む): 246415260

約数和(自身を除く): 165179640

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451309, 902618, 1353927, 1805236, 2256545, 2707854, 4061781, 4513090, 5415708, 6769635, 8123562, 9026180, 13539270, 16247124, 20308905, 27078540, 40617810, 81235620]

約数ペア:

[(1, 81235620), (2, 40617810), (3, 27078540), (4, 20308905), (5, 16247124), (6, 13539270), (9, 9026180), (10, 8123562), (12, 6769635), (15, 5415708), (18, 4513090), (20, 4061781), (30, 2707854), (36, 2256545), (45, 1805236), (60, 1353927), (90, 902618), (180, 451309)]