81957564

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:764

約数の個数: 108

約数和(自身を含む): 236472600

約数和(自身を除く): 154515036

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 76, 78, 114, 117, 156, 169, 171, 228, 234, 247, 338, 342, 468, 494, 507, 676, 684, 709, 741, 988, 1014, 1418, 1482, 1521, 2028, 2127, 2223, 2836, 2964, 3042, 3211, 4254, 4446, 6084, 6381, 6422, 8508, 8892, 9217, 9633, 12762, 12844, 13471, 18434, 19266, 25524, 26942, 27651, 28899, 36868, 38532, 40413, 53884, 55302, 57798, 80826, 82953, 110604, 115596, 119821, 121239, 161652, 165906, 175123, 239642, 242478, 331812, 350246, 359463, 479284, 484956, 525369, 700492, 718926, 1050738, 1078389, 1437852, 1576107, 2101476, 2156778, 2276599, 3152214, 4313556, 4553198, 6304428, 6829797, 9106396, 13659594, 20489391, 27319188, 40978782, 81957564]

約数ペア:

[(1, 81957564), (2, 40978782), (3, 27319188), (4, 20489391), (6, 13659594), (9, 9106396), (12, 6829797), (13, 6304428), (18, 4553198), (19, 4313556), (26, 3152214), (36, 2276599), (38, 2156778), (39, 2101476), (52, 1576107), (57, 1437852), (76, 1078389), (78, 1050738), (114, 718926), (117, 700492), (156, 525369), (169, 484956), (171, 479284), (228, 359463), (234, 350246), (247, 331812), (338, 242478), (342, 239642), (468, 175123), (494, 165906), (507, 161652), (676, 121239), (684, 119821), (709, 115596), (741, 110604), (988, 82953), (1014, 80826), (1418, 57798), (1482, 55302), (1521, 53884), (2028, 40413), (2127, 38532), (2223, 36868), (2836, 28899), (2964, 27651), (3042, 26942), (3211, 25524), (4254, 19266), (4446, 18434), (6084, 13471), (6381, 12844), (6422, 12762), (8508, 9633), (8892, 9217)]