201619782440

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{5086271}}^1$

素因数の和:5087273

約数の個数: 32

約数和(自身を含む): 454102364160

約数和(自身を除く): 252482581720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1982, 3964, 4955, 7928, 9910, 19820, 39640, 5086271, 10172542, 20345084, 25431355, 40690168, 50862710, 101725420, 203450840, 5040494561, 10080989122, 20161978244, 25202472805, 40323956488, 50404945610, 100809891220, 201619782440]

約数ペア:

[(1, 201619782440), (2, 100809891220), (4, 50404945610), (5, 40323956488), (8, 25202472805), (10, 20161978244), (20, 10080989122), (40, 5040494561), (991, 203450840), (1982, 101725420), (3964, 50862710), (4955, 40690168), (7928, 25431355), (9910, 20345084), (19820, 10172542), (39640, 5086271)]