90212031

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{229}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 166339680

約数和(自身を除く): 76127649

約数列:

[1, 3, 7, 9, 13, 21, 37, 39, 63, 91, 111, 117, 169, 229, 259, 273, 333, 481, 507, 687, 777, 819, 1183, 1443, 1521, 1603, 2061, 2331, 2977, 3367, 3549, 4329, 4809, 6253, 8473, 8931, 10101, 10647, 14427, 18759, 20839, 25419, 26793, 30303, 38701, 43771, 56277, 59311, 62517, 76257, 110149, 116103, 131313, 177933, 187551, 270907, 330447, 348309, 393939, 533799, 771043, 812721, 991341, 1431937, 2313129, 2438163, 4295811, 6939387, 10023559, 12887433, 30070677, 90212031]

約数ペア:

[(1, 90212031), (3, 30070677), (7, 12887433), (9, 10023559), (13, 6939387), (21, 4295811), (37, 2438163), (39, 2313129), (63, 1431937), (91, 991341), (111, 812721), (117, 771043), (169, 533799), (229, 393939), (259, 348309), (273, 330447), (333, 270907), (481, 187551), (507, 177933), (687, 131313), (777, 116103), (819, 110149), (1183, 76257), (1443, 62517), (1521, 59311), (1603, 56277), (2061, 43771), (2331, 38701), (2977, 30303), (3367, 26793), (3549, 25419), (4329, 20839), (4809, 18759), (6253, 14427), (8473, 10647), (8931, 10101)]