978500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:141

約数の個数: 48

約数和(自身を含む): 2271360

約数和(自身を除く): 1292860

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 103, 125, 190, 206, 250, 380, 412, 475, 500, 515, 950, 1030, 1900, 1957, 2060, 2375, 2575, 3914, 4750, 5150, 7828, 9500, 9785, 10300, 12875, 19570, 25750, 39140, 48925, 51500, 97850, 195700, 244625, 489250, 978500]

約数ペア:

[(1, 978500), (2, 489250), (4, 244625), (5, 195700), (10, 97850), (19, 51500), (20, 48925), (25, 39140), (38, 25750), (50, 19570), (76, 12875), (95, 10300), (100, 9785), (103, 9500), (125, 7828), (190, 5150), (206, 4750), (250, 3914), (380, 2575), (412, 2375), (475, 2060), (500, 1957), (515, 1900), (950, 1030)]