20814500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:358

約数の個数: 96

約数和(自身を含む): 54862080

約数和(自身を除く): 34047580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 25, 28, 35, 38, 50, 70, 76, 95, 100, 125, 133, 140, 175, 190, 250, 266, 313, 350, 380, 475, 500, 532, 626, 665, 700, 875, 950, 1252, 1330, 1565, 1750, 1900, 2191, 2375, 2660, 3130, 3325, 3500, 4382, 4750, 5947, 6260, 6650, 7825, 8764, 9500, 10955, 11894, 13300, 15650, 16625, 21910, 23788, 29735, 31300, 33250, 39125, 41629, 43820, 54775, 59470, 66500, 78250, 83258, 109550, 118940, 148675, 156500, 166516, 208145, 219100, 273875, 297350, 416290, 547750, 594700, 743375, 832580, 1040725, 1095500, 1486750, 2081450, 2973500, 4162900, 5203625, 10407250, 20814500]

約数ペア:

[(1, 20814500), (2, 10407250), (4, 5203625), (5, 4162900), (7, 2973500), (10, 2081450), (14, 1486750), (19, 1095500), (20, 1040725), (25, 832580), (28, 743375), (35, 594700), (38, 547750), (50, 416290), (70, 297350), (76, 273875), (95, 219100), (100, 208145), (125, 166516), (133, 156500), (140, 148675), (175, 118940), (190, 109550), (250, 83258), (266, 78250), (313, 66500), (350, 59470), (380, 54775), (475, 43820), (500, 41629), (532, 39125), (626, 33250), (665, 31300), (700, 29735), (875, 23788), (950, 21910), (1252, 16625), (1330, 15650), (1565, 13300), (1750, 11894), (1900, 10955), (2191, 9500), (2375, 8764), (2660, 7825), (3130, 6650), (3325, 6260), (3500, 5947), (4382, 4750)]