2018759500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{212501}}^1$

素因数の和:212539

約数の個数: 48

約数和(自身を含む): 4641043680

約数和(自身を除く): 2622284180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2375, 4750, 9500, 212501, 425002, 850004, 1062505, 2125010, 4037519, 4250020, 5312525, 8075038, 10625050, 16150076, 20187595, 21250100, 26562625, 40375190, 53125250, 80750380, 100937975, 106250500, 201875950, 403751900, 504689875, 1009379750, 2018759500]

約数ペア:

[(1, 2018759500), (2, 1009379750), (4, 504689875), (5, 403751900), (10, 201875950), (19, 106250500), (20, 100937975), (25, 80750380), (38, 53125250), (50, 40375190), (76, 26562625), (95, 21250100), (100, 20187595), (125, 16150076), (190, 10625050), (250, 8075038), (380, 5312525), (475, 4250020), (500, 4037519), (950, 2125010), (1900, 1062505), (2375, 850004), (4750, 425002), (9500, 212501)]