28131012

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{277}}^1$

素因数の和:338

約数の個数: 144

約数和(自身を含む): 90668032

約数和(自身を除く): 62537020

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 31, 36, 39, 42, 52, 62, 63, 78, 84, 91, 93, 117, 124, 126, 156, 182, 186, 217, 234, 252, 273, 277, 279, 364, 372, 403, 434, 468, 546, 554, 558, 651, 806, 819, 831, 868, 1092, 1108, 1116, 1209, 1302, 1612, 1638, 1662, 1939, 1953, 2418, 2493, 2604, 2821, 3276, 3324, 3601, 3627, 3878, 3906, 4836, 4986, 5642, 5817, 7202, 7254, 7756, 7812, 8463, 8587, 9972, 10803, 11284, 11634, 14404, 14508, 16926, 17174, 17451, 21606, 23268, 25207, 25389, 25761, 32409, 33852, 34348, 34902, 43212, 50414, 50778, 51522, 60109, 64818, 69804, 75621, 77283, 100828, 101556, 103044, 111631, 120218, 129636, 151242, 154566, 180327, 223262, 226863, 240436, 302484, 309132, 334893, 360654, 446524, 453726, 540981, 669786, 721308, 781417, 907452, 1004679, 1081962, 1339572, 1562834, 2009358, 2163924, 2344251, 3125668, 4018716, 4688502, 7032753, 9377004, 14065506, 28131012]

約数ペア:

[(1, 28131012), (2, 14065506), (3, 9377004), (4, 7032753), (6, 4688502), (7, 4018716), (9, 3125668), (12, 2344251), (13, 2163924), (14, 2009358), (18, 1562834), (21, 1339572), (26, 1081962), (28, 1004679), (31, 907452), (36, 781417), (39, 721308), (42, 669786), (52, 540981), (62, 453726), (63, 446524), (78, 360654), (84, 334893), (91, 309132), (93, 302484), (117, 240436), (124, 226863), (126, 223262), (156, 180327), (182, 154566), (186, 151242), (217, 129636), (234, 120218), (252, 111631), (273, 103044), (277, 101556), (279, 100828), (364, 77283), (372, 75621), (403, 69804), (434, 64818), (468, 60109), (546, 51522), (554, 50778), (558, 50414), (651, 43212), (806, 34902), (819, 34348), (831, 33852), (868, 32409), (1092, 25761), (1108, 25389), (1116, 25207), (1209, 23268), (1302, 21606), (1612, 17451), (1638, 17174), (1662, 16926), (1939, 14508), (1953, 14404), (2418, 11634), (2493, 11284), (2604, 10803), (2821, 9972), (3276, 8587), (3324, 8463), (3601, 7812), (3627, 7756), (3878, 7254), (3906, 7202), (4836, 5817), (4986, 5642)]