28080234

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 144

約数和(自身を含む): 79672320

約数和(自身を除く): 51592086

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 49, 62, 63, 78, 79, 91, 93, 98, 117, 126, 147, 158, 182, 186, 217, 234, 237, 273, 279, 294, 403, 434, 441, 474, 546, 553, 558, 637, 651, 711, 806, 819, 882, 1027, 1106, 1209, 1274, 1302, 1422, 1519, 1638, 1659, 1911, 1953, 2054, 2418, 2449, 2821, 3038, 3081, 3318, 3627, 3822, 3871, 3906, 4557, 4898, 4977, 5642, 5733, 6162, 7189, 7254, 7347, 7742, 8463, 9114, 9243, 9954, 11466, 11613, 13671, 14378, 14694, 16926, 17143, 18486, 19747, 21567, 22041, 23226, 25389, 27342, 31837, 34286, 34839, 39494, 43134, 44082, 50323, 50778, 51429, 59241, 63674, 64701, 69678, 95511, 100646, 102858, 118482, 120001, 129402, 150969, 154287, 177723, 191022, 222859, 240002, 286533, 301938, 308574, 355446, 360003, 445718, 452907, 573066, 668577, 720006, 905814, 1080009, 1337154, 1560013, 2005731, 2160018, 3120026, 4011462, 4680039, 9360078, 14040117, 28080234]

約数ペア:

[(1, 28080234), (2, 14040117), (3, 9360078), (6, 4680039), (7, 4011462), (9, 3120026), (13, 2160018), (14, 2005731), (18, 1560013), (21, 1337154), (26, 1080009), (31, 905814), (39, 720006), (42, 668577), (49, 573066), (62, 452907), (63, 445718), (78, 360003), (79, 355446), (91, 308574), (93, 301938), (98, 286533), (117, 240002), (126, 222859), (147, 191022), (158, 177723), (182, 154287), (186, 150969), (217, 129402), (234, 120001), (237, 118482), (273, 102858), (279, 100646), (294, 95511), (403, 69678), (434, 64701), (441, 63674), (474, 59241), (546, 51429), (553, 50778), (558, 50323), (637, 44082), (651, 43134), (711, 39494), (806, 34839), (819, 34286), (882, 31837), (1027, 27342), (1106, 25389), (1209, 23226), (1274, 22041), (1302, 21567), (1422, 19747), (1519, 18486), (1638, 17143), (1659, 16926), (1911, 14694), (1953, 14378), (2054, 13671), (2418, 11613), (2449, 11466), (2821, 9954), (3038, 9243), (3081, 9114), (3318, 8463), (3627, 7742), (3822, 7347), (3871, 7254), (3906, 7189), (4557, 6162), (4898, 5733), (4977, 5642)]