20853386500

素因数分解:

$2^2\times 5^3\times {\mathrm{137}}^1\times {\mathrm{304429}}^1$

素因数の和:304585

約数の個数: 48

約数和(自身を含む): 45876383280

約数和(自身を除く): 25022996780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 137, 250, 274, 500, 548, 685, 1370, 2740, 3425, 6850, 13700, 17125, 34250, 68500, 304429, 608858, 1217716, 1522145, 3044290, 6088580, 7610725, 15221450, 30442900, 38053625, 41706773, 76107250, 83413546, 152214500, 166827092, 208533865, 417067730, 834135460, 1042669325, 2085338650, 4170677300, 5213346625, 10426693250, 20853386500]

約数ペア:

[(1, 20853386500), (2, 10426693250), (4, 5213346625), (5, 4170677300), (10, 2085338650), (20, 1042669325), (25, 834135460), (50, 417067730), (100, 208533865), (125, 166827092), (137, 152214500), (250, 83413546), (274, 76107250), (500, 41706773), (548, 38053625), (685, 30442900), (1370, 15221450), (2740, 7610725), (3425, 6088580), (6850, 3044290), (13700, 1522145), (17125, 1217716), (34250, 608858), (68500, 304429)]