20793901900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{421783}}^1$

素因数の和:421843

約数の個数: 72

約数和(自身を含む): 49424649120

約数和(自身を除く): 28630747220

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 85, 100, 116, 145, 170, 290, 340, 425, 493, 580, 725, 850, 986, 1450, 1700, 1972, 2465, 2900, 4930, 9860, 12325, 24650, 49300, 421783, 843566, 1687132, 2108915, 4217830, 7170311, 8435660, 10544575, 12231707, 14340622, 21089150, 24463414, 28681244, 35851555, 42178300, 48926828, 61158535, 71703110, 122317070, 143406220, 179257775, 207939019, 244634140, 305792675, 358515550, 415878038, 611585350, 717031100, 831756076, 1039695095, 1223170700, 2079390190, 4158780380, 5198475475, 10396950950, 20793901900]

約数ペア:

[(1, 20793901900), (2, 10396950950), (4, 5198475475), (5, 4158780380), (10, 2079390190), (17, 1223170700), (20, 1039695095), (25, 831756076), (29, 717031100), (34, 611585350), (50, 415878038), (58, 358515550), (68, 305792675), (85, 244634140), (100, 207939019), (116, 179257775), (145, 143406220), (170, 122317070), (290, 71703110), (340, 61158535), (425, 48926828), (493, 42178300), (580, 35851555), (725, 28681244), (850, 24463414), (986, 21089150), (1450, 14340622), (1700, 12231707), (1972, 10544575), (2465, 8435660), (2900, 7170311), (4930, 4217830), (9860, 2108915), (12325, 1687132), (24650, 843566), (49300, 421783)]