81420012

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 221276160

約数和(自身を除く): 139856148

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 83, 93, 108, 124, 166, 186, 249, 279, 293, 332, 372, 498, 558, 586, 747, 837, 879, 996, 1116, 1172, 1494, 1674, 1758, 2241, 2573, 2637, 2988, 3348, 3516, 4482, 5146, 5274, 7719, 7911, 8964, 9083, 10292, 10548, 15438, 15822, 18166, 23157, 24319, 27249, 30876, 31644, 36332, 46314, 48638, 54498, 69471, 72957, 81747, 92628, 97276, 108996, 138942, 145914, 163494, 218871, 245241, 277884, 291828, 326988, 437742, 490482, 656613, 753889, 875484, 980964, 1313226, 1507778, 2261667, 2626452, 3015556, 4523334, 6785001, 9046668, 13570002, 20355003, 27140004, 40710006, 81420012]

約数ペア:

[(1, 81420012), (2, 40710006), (3, 27140004), (4, 20355003), (6, 13570002), (9, 9046668), (12, 6785001), (18, 4523334), (27, 3015556), (31, 2626452), (36, 2261667), (54, 1507778), (62, 1313226), (83, 980964), (93, 875484), (108, 753889), (124, 656613), (166, 490482), (186, 437742), (249, 326988), (279, 291828), (293, 277884), (332, 245241), (372, 218871), (498, 163494), (558, 145914), (586, 138942), (747, 108996), (837, 97276), (879, 92628), (996, 81747), (1116, 72957), (1172, 69471), (1494, 54498), (1674, 48638), (1758, 46314), (2241, 36332), (2573, 31644), (2637, 30876), (2988, 27249), (3348, 24319), (3516, 23157), (4482, 18166), (5146, 15822), (5274, 15438), (7719, 10548), (7911, 10292), (8964, 9083)]