20926480360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{179719}}^1$

素因数の和:179842

約数の個数: 64

約数和(自身を含む): 48912595200

約数和(自身を除く): 27986114840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 710, 820, 1420, 1640, 2840, 2911, 5822, 11644, 14555, 23288, 29110, 58220, 116440, 179719, 359438, 718876, 898595, 1437752, 1797190, 3594380, 7188760, 7368479, 12760049, 14736958, 25520098, 29473916, 36842395, 51040196, 58947832, 63800245, 73684790, 102080392, 127600490, 147369580, 255200980, 294739160, 510401960, 523162009, 1046324018, 2092648036, 2615810045, 4185296072, 5231620090, 10463240180, 20926480360]

約数ペア:

[(1, 20926480360), (2, 10463240180), (4, 5231620090), (5, 4185296072), (8, 2615810045), (10, 2092648036), (20, 1046324018), (40, 523162009), (41, 510401960), (71, 294739160), (82, 255200980), (142, 147369580), (164, 127600490), (205, 102080392), (284, 73684790), (328, 63800245), (355, 58947832), (410, 51040196), (568, 36842395), (710, 29473916), (820, 25520098), (1420, 14736958), (1640, 12760049), (2840, 7368479), (2911, 7188760), (5822, 3594380), (11644, 1797190), (14555, 1437752), (23288, 898595), (29110, 718876), (58220, 359438), (116440, 179719)]