28186236

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{263}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 77357280

約数和(自身を除く): 49171044

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 229, 234, 263, 458, 468, 526, 687, 789, 916, 1052, 1374, 1578, 2061, 2367, 2748, 2977, 3156, 3419, 4122, 4734, 5954, 6838, 8244, 8931, 9468, 10257, 11908, 13676, 17862, 20514, 26793, 30771, 35724, 41028, 53586, 60227, 61542, 107172, 120454, 123084, 180681, 240908, 361362, 542043, 722724, 782951, 1084086, 1565902, 2168172, 2348853, 3131804, 4697706, 7046559, 9395412, 14093118, 28186236]

約数ペア:

[(1, 28186236), (2, 14093118), (3, 9395412), (4, 7046559), (6, 4697706), (9, 3131804), (12, 2348853), (13, 2168172), (18, 1565902), (26, 1084086), (36, 782951), (39, 722724), (52, 542043), (78, 361362), (117, 240908), (156, 180681), (229, 123084), (234, 120454), (263, 107172), (458, 61542), (468, 60227), (526, 53586), (687, 41028), (789, 35724), (916, 30771), (1052, 26793), (1374, 20514), (1578, 17862), (2061, 13676), (2367, 11908), (2748, 10257), (2977, 9468), (3156, 8931), (3419, 8244), (4122, 6838), (4734, 5954)]