320556255

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1\times {\mathrm{881}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 520224768

約数和(自身を除く): 199668513

約数列:

[1, 3, 5, 15, 127, 191, 381, 573, 635, 881, 955, 1905, 2643, 2865, 4405, 13215, 24257, 72771, 111887, 121285, 168271, 335661, 363855, 504813, 559435, 841355, 1678305, 2524065, 21370417, 64111251, 106852085, 320556255]

約数ペア:

[(1, 320556255), (3, 106852085), (5, 64111251), (15, 21370417), (127, 2524065), (191, 1678305), (381, 841355), (573, 559435), (635, 504813), (881, 363855), (955, 335661), (1905, 168271), (2643, 121285), (2865, 111887), (4405, 72771), (13215, 24257)]