28678572

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{263}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 78702624

約数和(自身を除く): 50024052

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 233, 234, 263, 466, 468, 526, 699, 789, 932, 1052, 1398, 1578, 2097, 2367, 2796, 3029, 3156, 3419, 4194, 4734, 6058, 6838, 8388, 9087, 9468, 10257, 12116, 13676, 18174, 20514, 27261, 30771, 36348, 41028, 54522, 61279, 61542, 109044, 122558, 123084, 183837, 245116, 367674, 551511, 735348, 796627, 1103022, 1593254, 2206044, 2389881, 3186508, 4779762, 7169643, 9559524, 14339286, 28678572]

約数ペア:

[(1, 28678572), (2, 14339286), (3, 9559524), (4, 7169643), (6, 4779762), (9, 3186508), (12, 2389881), (13, 2206044), (18, 1593254), (26, 1103022), (36, 796627), (39, 735348), (52, 551511), (78, 367674), (117, 245116), (156, 183837), (233, 123084), (234, 122558), (263, 109044), (466, 61542), (468, 61279), (526, 54522), (699, 41028), (789, 36348), (932, 30771), (1052, 27261), (1398, 20514), (1578, 18174), (2097, 13676), (2367, 12116), (2796, 10257), (3029, 9468), (3156, 9087), (3419, 8388), (4194, 6838), (4734, 6058)]