81797292

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1$

素因数の和:699

約数の個数: 72

約数和(自身を含む): 217211904

約数和(自身を除く): 135414612

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 223, 276, 414, 443, 446, 669, 828, 886, 892, 1329, 1338, 1772, 2007, 2658, 2676, 3987, 4014, 5129, 5316, 7974, 8028, 10189, 10258, 15387, 15948, 20378, 20516, 30567, 30774, 40756, 46161, 61134, 61548, 91701, 92322, 98789, 122268, 183402, 184644, 197578, 296367, 366804, 395156, 592734, 889101, 1185468, 1778202, 2272147, 3556404, 4544294, 6816441, 9088588, 13632882, 20449323, 27265764, 40898646, 81797292]

約数ペア:

[(1, 81797292), (2, 40898646), (3, 27265764), (4, 20449323), (6, 13632882), (9, 9088588), (12, 6816441), (18, 4544294), (23, 3556404), (36, 2272147), (46, 1778202), (69, 1185468), (92, 889101), (138, 592734), (207, 395156), (223, 366804), (276, 296367), (414, 197578), (443, 184644), (446, 183402), (669, 122268), (828, 98789), (886, 92322), (892, 91701), (1329, 61548), (1338, 61134), (1772, 46161), (2007, 40756), (2658, 30774), (2676, 30567), (3987, 20516), (4014, 20378), (5129, 15948), (5316, 15387), (7974, 10258), (8028, 10189)]