20556100856

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{739}}^1\times {\mathrm{2551}}^1$

素因数の和:3372

約数の個数: 64

約数和(自身を含む): 40791168000

約数和(自身を除く): 20235067144

約数列:

[1, 2, 4, 8, 29, 47, 58, 94, 116, 188, 232, 376, 739, 1363, 1478, 2551, 2726, 2956, 5102, 5452, 5912, 10204, 10904, 20408, 21431, 34733, 42862, 69466, 73979, 85724, 119897, 138932, 147958, 171448, 239794, 277864, 295916, 479588, 591832, 959176, 1007257, 1885189, 2014514, 3477013, 3770378, 4029028, 6954026, 7540756, 8058056, 13908052, 15081512, 27816104, 54670481, 88603883, 109340962, 177207766, 218681924, 354415532, 437363848, 708831064, 2569512607, 5139025214, 10278050428, 20556100856]

約数ペア:

[(1, 20556100856), (2, 10278050428), (4, 5139025214), (8, 2569512607), (29, 708831064), (47, 437363848), (58, 354415532), (94, 218681924), (116, 177207766), (188, 109340962), (232, 88603883), (376, 54670481), (739, 27816104), (1363, 15081512), (1478, 13908052), (2551, 8058056), (2726, 7540756), (2956, 6954026), (5102, 4029028), (5452, 3770378), (5912, 3477013), (10204, 2014514), (10904, 1885189), (20408, 1007257), (21431, 959176), (34733, 591832), (42862, 479588), (69466, 295916), (73979, 277864), (85724, 239794), (119897, 171448), (138932, 147958)]