205402005

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{683}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 367488576

約数和(自身を除く): 162086571

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 163, 205, 369, 489, 615, 683, 815, 1467, 1845, 2049, 2445, 3415, 6147, 6683, 7335, 10245, 20049, 28003, 30735, 33415, 60147, 84009, 100245, 111329, 140015, 252027, 300735, 333987, 420045, 556645, 1001961, 1260135, 1669935, 4564489, 5009805, 13693467, 22822445, 41080401, 68467335, 205402005]

約数ペア:

[(1, 205402005), (3, 68467335), (5, 41080401), (9, 22822445), (15, 13693467), (41, 5009805), (45, 4564489), (123, 1669935), (163, 1260135), (205, 1001961), (369, 556645), (489, 420045), (615, 333987), (683, 300735), (815, 252027), (1467, 140015), (1845, 111329), (2049, 100245), (2445, 84009), (3415, 60147), (6147, 33415), (6683, 30735), (7335, 28003), (10245, 20049)]