258996855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{35897}}^1$

素因数の和:35955

約数の個数: 32

約数和(自身を含む): 458345664

約数和(自身を除く): 199348809

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 7215, 35897, 107691, 179485, 466661, 538455, 1328189, 1399983, 2333305, 3984567, 6640945, 6999915, 17266457, 19922835, 51799371, 86332285, 258996855]

約数ペア:

[(1, 258996855), (3, 86332285), (5, 51799371), (13, 19922835), (15, 17266457), (37, 6999915), (39, 6640945), (65, 3984567), (111, 2333305), (185, 1399983), (195, 1328189), (481, 538455), (555, 466661), (1443, 179485), (2405, 107691), (7215, 35897)]