7890805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 11146464

約数和(自身を除く): 3255659

約数列:

[1, 5, 13, 17, 37, 65, 85, 185, 193, 221, 481, 629, 965, 1105, 2405, 2509, 3145, 3281, 7141, 8177, 12545, 16405, 35705, 40885, 42653, 92833, 121397, 213265, 464165, 606985, 1578161, 7890805]

約数ペア:

[(1, 7890805), (5, 1578161), (13, 606985), (17, 464165), (37, 213265), (65, 121397), (85, 92833), (185, 42653), (193, 40885), (221, 35705), (481, 16405), (629, 12545), (965, 8177), (1105, 7141), (2405, 3281), (2509, 3145)]