28005438620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{3119}}^1$

素因数の和:3407

約数の個数: 96

約数和(自身を含む): 61845638400

約数和(自身を除く): 33840199780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 137, 145, 226, 274, 290, 452, 548, 565, 580, 685, 1130, 1370, 2260, 2740, 3119, 3277, 3973, 6238, 6554, 7946, 12476, 13108, 15481, 15595, 15892, 16385, 19865, 30962, 31190, 32770, 39730, 61924, 62380, 65540, 77405, 79460, 90451, 154810, 180902, 309620, 352447, 361804, 427303, 448949, 452255, 704894, 854606, 897898, 904510, 1409788, 1709212, 1762235, 1795796, 1809020, 2136515, 2244745, 3524470, 4273030, 4489490, 7048940, 8546060, 8978980, 10220963, 12391787, 20441926, 24783574, 40883852, 48285239, 49567148, 51104815, 61958935, 96570478, 102209630, 123917870, 193140956, 204419260, 241426195, 247835740, 482852390, 965704780, 1400271931, 2800543862, 5601087724, 7001359655, 14002719310, 28005438620]

約数ペア:

[(1, 28005438620), (2, 14002719310), (4, 7001359655), (5, 5601087724), (10, 2800543862), (20, 1400271931), (29, 965704780), (58, 482852390), (113, 247835740), (116, 241426195), (137, 204419260), (145, 193140956), (226, 123917870), (274, 102209630), (290, 96570478), (452, 61958935), (548, 51104815), (565, 49567148), (580, 48285239), (685, 40883852), (1130, 24783574), (1370, 20441926), (2260, 12391787), (2740, 10220963), (3119, 8978980), (3277, 8546060), (3973, 7048940), (6238, 4489490), (6554, 4273030), (7946, 3524470), (12476, 2244745), (13108, 2136515), (15481, 1809020), (15595, 1795796), (15892, 1762235), (16385, 1709212), (19865, 1409788), (30962, 904510), (31190, 897898), (32770, 854606), (39730, 704894), (61924, 452255), (62380, 448949), (65540, 427303), (77405, 361804), (79460, 352447), (90451, 309620), (154810, 180902)]