81988956

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{15493}}^1$

素因数の和:15520

約数の個数: 72

約数和(自身を含む): 247284240

約数和(自身を除く): 165295284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 5292, 15493, 30986, 46479, 61972, 92958, 108451, 139437, 185916, 216902, 278874, 325353, 418311, 433804, 557748, 650706, 759157, 836622, 976059, 1301412, 1518314, 1673244, 1952118, 2277471, 2928177, 3036628, 3904236, 4554942, 5856354, 6832413, 9109884, 11712708, 13664826, 20497239, 27329652, 40994478, 81988956]

約数ペア:

[(1, 81988956), (2, 40994478), (3, 27329652), (4, 20497239), (6, 13664826), (7, 11712708), (9, 9109884), (12, 6832413), (14, 5856354), (18, 4554942), (21, 3904236), (27, 3036628), (28, 2928177), (36, 2277471), (42, 1952118), (49, 1673244), (54, 1518314), (63, 1301412), (84, 976059), (98, 836622), (108, 759157), (126, 650706), (147, 557748), (189, 433804), (196, 418311), (252, 325353), (294, 278874), (378, 216902), (441, 185916), (588, 139437), (756, 108451), (882, 92958), (1323, 61972), (1764, 46479), (2646, 30986), (5292, 15493)]