679905

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 1221480

約数和(自身を除く): 541575

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 521, 1305, 1563, 2605, 4689, 7815, 15109, 23445, 45327, 75545, 135981, 226635, 679905]

約数ペア:

[(1, 679905), (3, 226635), (5, 135981), (9, 75545), (15, 45327), (29, 23445), (45, 15109), (87, 7815), (145, 4689), (261, 2605), (435, 1563), (521, 1305)]