181231128

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{277}}^1$

素因数の和:538

約数の個数: 128

約数和(自身を含む): 546436800

約数和(自身を除く): 365205672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 216, 233, 234, 277, 312, 351, 466, 468, 554, 699, 702, 831, 932, 936, 1108, 1398, 1404, 1662, 1864, 2097, 2216, 2493, 2796, 2808, 3029, 3324, 3601, 4194, 4986, 5592, 6058, 6291, 6648, 7202, 7479, 8388, 9087, 9972, 10803, 12116, 12582, 14404, 14958, 16776, 18174, 19944, 21606, 24232, 25164, 27261, 28808, 29916, 32409, 36348, 43212, 50328, 54522, 59832, 64541, 64818, 72696, 81783, 86424, 97227, 109044, 129082, 129636, 163566, 193623, 194454, 218088, 258164, 259272, 327132, 387246, 388908, 516328, 580869, 654264, 774492, 777816, 839033, 1161738, 1548984, 1678066, 1742607, 2323476, 2517099, 3356132, 3485214, 4646952, 5034198, 6712264, 6970428, 7551297, 10068396, 13940856, 15102594, 20136792, 22653891, 30205188, 45307782, 60410376, 90615564, 181231128]

約数ペア:

[(1, 181231128), (2, 90615564), (3, 60410376), (4, 45307782), (6, 30205188), (8, 22653891), (9, 20136792), (12, 15102594), (13, 13940856), (18, 10068396), (24, 7551297), (26, 6970428), (27, 6712264), (36, 5034198), (39, 4646952), (52, 3485214), (54, 3356132), (72, 2517099), (78, 2323476), (104, 1742607), (108, 1678066), (117, 1548984), (156, 1161738), (216, 839033), (233, 777816), (234, 774492), (277, 654264), (312, 580869), (351, 516328), (466, 388908), (468, 387246), (554, 327132), (699, 259272), (702, 258164), (831, 218088), (932, 194454), (936, 193623), (1108, 163566), (1398, 129636), (1404, 129082), (1662, 109044), (1864, 97227), (2097, 86424), (2216, 81783), (2493, 72696), (2796, 64818), (2808, 64541), (3029, 59832), (3324, 54522), (3601, 50328), (4194, 43212), (4986, 36348), (5592, 32409), (6058, 29916), (6291, 28808), (6648, 27261), (7202, 25164), (7479, 24232), (8388, 21606), (9087, 19944), (9972, 18174), (10803, 16776), (12116, 14958), (12582, 14404)]