20858256

素因数分解:

$2^4\times 3^3\times {\mathrm{53}}^1\times {\mathrm{911}}^1$

素因数の和:981

約数の個数: 80

約数和(自身を含む): 61067520

約数和(自身を除く): 40209264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 53, 54, 72, 106, 108, 144, 159, 212, 216, 318, 424, 432, 477, 636, 848, 911, 954, 1272, 1431, 1822, 1908, 2544, 2733, 2862, 3644, 3816, 5466, 5724, 7288, 7632, 8199, 10932, 11448, 14576, 16398, 21864, 22896, 24597, 32796, 43728, 48283, 49194, 65592, 96566, 98388, 131184, 144849, 193132, 196776, 289698, 386264, 393552, 434547, 579396, 772528, 869094, 1158792, 1303641, 1738188, 2317584, 2607282, 3476376, 5214564, 6952752, 10429128, 20858256]

約数ペア:

[(1, 20858256), (2, 10429128), (3, 6952752), (4, 5214564), (6, 3476376), (8, 2607282), (9, 2317584), (12, 1738188), (16, 1303641), (18, 1158792), (24, 869094), (27, 772528), (36, 579396), (48, 434547), (53, 393552), (54, 386264), (72, 289698), (106, 196776), (108, 193132), (144, 144849), (159, 131184), (212, 98388), (216, 96566), (318, 65592), (424, 49194), (432, 48283), (477, 43728), (636, 32796), (848, 24597), (911, 22896), (954, 21864), (1272, 16398), (1431, 14576), (1822, 11448), (1908, 10932), (2544, 8199), (2733, 7632), (2862, 7288), (3644, 5724), (3816, 5466)]