220791564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2647}}^1$

素因数の和:2995

約数の個数: 72

約数和(自身を含む): 640011008

約数和(自身を除く): 419219444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 331, 662, 993, 1324, 1986, 2317, 2647, 2979, 3972, 4634, 5294, 5958, 6951, 7941, 9268, 10588, 11916, 13902, 15882, 18529, 20853, 23823, 27804, 31764, 37058, 41706, 47646, 55587, 74116, 83412, 95292, 111174, 166761, 222348, 333522, 667044, 876157, 1752314, 2628471, 3504628, 5256942, 6133099, 7885413, 10513884, 12266198, 15770826, 18399297, 24532396, 31541652, 36798594, 55197891, 73597188, 110395782, 220791564]

約数ペア:

[(1, 220791564), (2, 110395782), (3, 73597188), (4, 55197891), (6, 36798594), (7, 31541652), (9, 24532396), (12, 18399297), (14, 15770826), (18, 12266198), (21, 10513884), (28, 7885413), (36, 6133099), (42, 5256942), (63, 3504628), (84, 2628471), (126, 1752314), (252, 876157), (331, 667044), (662, 333522), (993, 222348), (1324, 166761), (1986, 111174), (2317, 95292), (2647, 83412), (2979, 74116), (3972, 55587), (4634, 47646), (5294, 41706), (5958, 37058), (6951, 31764), (7941, 27804), (9268, 23823), (10588, 20853), (11916, 18529), (13902, 15882)]