2017597825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 2697148800

約数和(自身を除く): 679550975

約数列:

[1, 5, 17, 25, 85, 149, 151, 211, 425, 745, 755, 1055, 2533, 2567, 3587, 3725, 3775, 5275, 12665, 12835, 17935, 22499, 31439, 31861, 63325, 64175, 89675, 112495, 157195, 159305, 382483, 534463, 541637, 562475, 785975, 796525, 1912415, 2672315, 2708185, 4747289, 9562075, 13361575, 13540925, 23736445, 80703913, 118682225, 403519565, 2017597825]

約数ペア:

[(1, 2017597825), (5, 403519565), (17, 118682225), (25, 80703913), (85, 23736445), (149, 13540925), (151, 13361575), (211, 9562075), (425, 4747289), (745, 2708185), (755, 2672315), (1055, 1912415), (2533, 796525), (2567, 785975), (3587, 562475), (3725, 541637), (3775, 534463), (5275, 382483), (12665, 159305), (12835, 157195), (17935, 112495), (22499, 89675), (31439, 64175), (31861, 63325)]