816392785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1\times {\mathrm{1861}}^1$

素因数の和:2293

約数の個数: 32

約数和(自身を含む): 1120506912

約数和(自身を除く): 304114127

約数列:

[1, 5, 13, 17, 65, 85, 221, 397, 1105, 1861, 1985, 5161, 6749, 9305, 24193, 25805, 31637, 33745, 87737, 120965, 158185, 411281, 438685, 738817, 2056405, 3694085, 9604621, 12559889, 48023105, 62799445, 163278557, 816392785]

約数ペア:

[(1, 816392785), (5, 163278557), (13, 62799445), (17, 48023105), (65, 12559889), (85, 9604621), (221, 3694085), (397, 2056405), (1105, 738817), (1861, 438685), (1985, 411281), (5161, 158185), (6749, 120965), (9305, 87737), (24193, 33745), (25805, 31637)]