200520405

素因数分解:

$3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{16943}}^1$

素因数の和:17217

約数の個数: 24

約数和(自身を含む): 348910848

約数和(自身を除く): 148390443

約数列:

[1, 3, 5, 9, 15, 45, 263, 789, 1315, 2367, 3945, 11835, 16943, 50829, 84715, 152487, 254145, 762435, 4456009, 13368027, 22280045, 40104081, 66840135, 200520405]

約数ペア:

[(1, 200520405), (3, 66840135), (5, 40104081), (9, 22280045), (15, 13368027), (45, 4456009), (263, 762435), (789, 254145), (1315, 152487), (2367, 84715), (3945, 50829), (11835, 16943)]