12887615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 17962560

約数和(自身を除く): 5074945

約数列:

[1, 5, 13, 17, 65, 85, 107, 109, 221, 535, 545, 1105, 1391, 1417, 1819, 1853, 6955, 7085, 9095, 9265, 11663, 23647, 24089, 58315, 118235, 120445, 151619, 198271, 758095, 991355, 2577523, 12887615]

約数ペア:

[(1, 12887615), (5, 2577523), (13, 991355), (17, 758095), (65, 198271), (85, 151619), (107, 120445), (109, 118235), (221, 58315), (535, 24089), (545, 23647), (1105, 11663), (1391, 9265), (1417, 9095), (1819, 7085), (1853, 6955)]