2019997375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{839}}^1$

素因数の和:985

約数の個数: 64

約数和(自身を含む): 2943682560

約数和(自身を除く): 923685185

約数列:

[1, 5, 11, 17, 25, 55, 85, 103, 125, 187, 275, 425, 515, 839, 935, 1133, 1375, 1751, 2125, 2575, 4195, 4675, 5665, 8755, 9229, 12875, 14263, 19261, 20975, 23375, 28325, 43775, 46145, 71315, 86417, 96305, 104875, 141625, 156893, 218875, 230725, 356575, 432085, 481525, 784465, 950587, 1153625, 1469089, 1782875, 2160425, 2407625, 3922325, 4752935, 7345445, 10802125, 16159979, 19611625, 23764675, 36727225, 80799895, 118823375, 183636125, 403999475, 2019997375]

約数ペア:

[(1, 2019997375), (5, 403999475), (11, 183636125), (17, 118823375), (25, 80799895), (55, 36727225), (85, 23764675), (103, 19611625), (125, 16159979), (187, 10802125), (275, 7345445), (425, 4752935), (515, 3922325), (839, 2407625), (935, 2160425), (1133, 1782875), (1375, 1469089), (1751, 1153625), (2125, 950587), (2575, 784465), (4195, 481525), (4675, 432085), (5665, 356575), (8755, 230725), (9229, 218875), (12875, 156893), (14263, 141625), (19261, 104875), (20975, 96305), (23375, 86417), (28325, 71315), (43775, 46145)]