9900225

素因数分解:

$3^4\times 5^2\times {\mathrm{4889}}^1$

素因数の和:4911

約数の個数: 30

約数和(自身を含む): 18342390

約数和(自身を除く): 8442165

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 4889, 14667, 24445, 44001, 73335, 122225, 132003, 220005, 366675, 396009, 660015, 1100025, 1980045, 3300075, 9900225]

約数ペア:

[(1, 9900225), (3, 3300075), (5, 1980045), (9, 1100025), (15, 660015), (25, 396009), (27, 366675), (45, 220005), (75, 132003), (81, 122225), (135, 73335), (225, 44001), (405, 24445), (675, 14667), (2025, 4889)]