261394812

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{21169}}^1$

素因数の和:21200

約数の個数: 72

約数和(自身を含む): 770588000

約数和(自身を除く): 509193188

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1764, 2058, 3087, 4116, 6174, 12348, 21169, 42338, 63507, 84676, 127014, 148183, 190521, 254028, 296366, 381042, 444549, 592732, 762084, 889098, 1037281, 1333647, 1778196, 2074562, 2667294, 3111843, 4149124, 5334588, 6223686, 7260967, 9335529, 12447372, 14521934, 18671058, 21782901, 29043868, 37342116, 43565802, 65348703, 87131604, 130697406, 261394812]

約数ペア:

[(1, 261394812), (2, 130697406), (3, 87131604), (4, 65348703), (6, 43565802), (7, 37342116), (9, 29043868), (12, 21782901), (14, 18671058), (18, 14521934), (21, 12447372), (28, 9335529), (36, 7260967), (42, 6223686), (49, 5334588), (63, 4149124), (84, 3111843), (98, 2667294), (126, 2074562), (147, 1778196), (196, 1333647), (252, 1037281), (294, 889098), (343, 762084), (441, 592732), (588, 444549), (686, 381042), (882, 296366), (1029, 254028), (1372, 190521), (1764, 148183), (2058, 127014), (3087, 84676), (4116, 63507), (6174, 42338), (12348, 21169)]