680805

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^2$

素因数の和:99

約数の個数: 30

約数和(自身を含む): 1250898

約数和(自身を除く): 570093

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 369, 405, 615, 1107, 1681, 1845, 3321, 5043, 5535, 8405, 15129, 16605, 25215, 45387, 75645, 136161, 226935, 680805]

約数ペア:

[(1, 680805), (3, 226935), (5, 136161), (9, 75645), (15, 45387), (27, 25215), (41, 16605), (45, 15129), (81, 8405), (123, 5535), (135, 5043), (205, 3321), (369, 1845), (405, 1681), (615, 1107)]