208345905

素因数分解:

$3^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3169}}^1$

素因数の和:3670

約数の個数: 32

約数和(自身を含む): 371270400

約数和(自身を除く): 162924495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 487, 1461, 2435, 3169, 4383, 7305, 9507, 13149, 15845, 21915, 28521, 47535, 65745, 85563, 142605, 427815, 1543303, 4629909, 7716515, 13889727, 23149545, 41669181, 69448635, 208345905]

約数ペア:

[(1, 208345905), (3, 69448635), (5, 41669181), (9, 23149545), (15, 13889727), (27, 7716515), (45, 4629909), (135, 1543303), (487, 427815), (1461, 142605), (2435, 85563), (3169, 65745), (4383, 47535), (7305, 28521), (9507, 21915), (13149, 15845)]