40994000

素因数分解:

$2^4\times 5^3\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 80

約数和(自身を含む): 100588800

約数和(自身を除く): 59594800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 103, 125, 199, 200, 206, 250, 398, 400, 412, 500, 515, 796, 824, 995, 1000, 1030, 1592, 1648, 1990, 2000, 2060, 2575, 3184, 3980, 4120, 4975, 5150, 7960, 8240, 9950, 10300, 12875, 15920, 19900, 20497, 20600, 24875, 25750, 39800, 40994, 41200, 49750, 51500, 79600, 81988, 99500, 102485, 103000, 163976, 199000, 204970, 206000, 327952, 398000, 409940, 512425, 819880, 1024850, 1639760, 2049700, 2562125, 4099400, 5124250, 8198800, 10248500, 20497000, 40994000]

約数ペア:

[(1, 40994000), (2, 20497000), (4, 10248500), (5, 8198800), (8, 5124250), (10, 4099400), (16, 2562125), (20, 2049700), (25, 1639760), (40, 1024850), (50, 819880), (80, 512425), (100, 409940), (103, 398000), (125, 327952), (199, 206000), (200, 204970), (206, 199000), (250, 163976), (398, 103000), (400, 102485), (412, 99500), (500, 81988), (515, 79600), (796, 51500), (824, 49750), (995, 41200), (1000, 40994), (1030, 39800), (1592, 25750), (1648, 24875), (1990, 20600), (2000, 20497), (2060, 19900), (2575, 15920), (3184, 12875), (3980, 10300), (4120, 9950), (4975, 8240), (5150, 7960)]