2019925900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^2\times {\mathrm{21019}}^1$

素因数の和:21095

約数の個数: 54

約数和(自身を含む): 4529410620

約数和(自身を除く): 2509484720

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 961, 1550, 1922, 3100, 3844, 4805, 9610, 19220, 21019, 24025, 42038, 48050, 84076, 96100, 105095, 210190, 420380, 525475, 651589, 1050950, 1303178, 2101900, 2606356, 3257945, 6515890, 13031780, 16289725, 20199259, 32579450, 40398518, 65158900, 80797036, 100996295, 201992590, 403985180, 504981475, 1009962950, 2019925900]

約数ペア:

[(1, 2019925900), (2, 1009962950), (4, 504981475), (5, 403985180), (10, 201992590), (20, 100996295), (25, 80797036), (31, 65158900), (50, 40398518), (62, 32579450), (100, 20199259), (124, 16289725), (155, 13031780), (310, 6515890), (620, 3257945), (775, 2606356), (961, 2101900), (1550, 1303178), (1922, 1050950), (3100, 651589), (3844, 525475), (4805, 420380), (9610, 210190), (19220, 105095), (21019, 96100), (24025, 84076), (42038, 48050)]