205999905

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{12799}}^1$

素因数の和:12873

約数の個数: 32

約数和(自身を含む): 350208000

約数和(自身を除く): 144208095

約数列:

[1, 3, 5, 15, 29, 37, 87, 111, 145, 185, 435, 555, 1073, 3219, 5365, 12799, 16095, 38397, 63995, 191985, 371171, 473563, 1113513, 1420689, 1855855, 2367815, 5567565, 7103445, 13733327, 41199981, 68666635, 205999905]

約数ペア:

[(1, 205999905), (3, 68666635), (5, 41199981), (15, 13733327), (29, 7103445), (37, 5567565), (87, 2367815), (111, 1855855), (145, 1420689), (185, 1113513), (435, 473563), (555, 371171), (1073, 191985), (3219, 63995), (5365, 38397), (12799, 16095)]