2019268880

素因数分解:

$2^4\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{12703}}^1$

素因数の和:14703

約数の個数: 40

約数和(自身を含む): 4697532672

約数和(自身を除く): 2678263792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1987, 3974, 7948, 9935, 12703, 15896, 19870, 25406, 31792, 39740, 50812, 63515, 79480, 101624, 127030, 158960, 203248, 254060, 508120, 1016240, 25240861, 50481722, 100963444, 126204305, 201926888, 252408610, 403853776, 504817220, 1009634440, 2019268880]

約数ペア:

[(1, 2019268880), (2, 1009634440), (4, 504817220), (5, 403853776), (8, 252408610), (10, 201926888), (16, 126204305), (20, 100963444), (40, 50481722), (80, 25240861), (1987, 1016240), (3974, 508120), (7948, 254060), (9935, 203248), (12703, 158960), (15896, 127030), (19870, 101624), (25406, 79480), (31792, 63515), (39740, 50812)]