4099400

素因数分解:

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

素因数の和:318

約数の個数: 48

約数和(自身を含む): 9672000

約数和(自身を除く): 5572600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 103, 199, 200, 206, 398, 412, 515, 796, 824, 995, 1030, 1592, 1990, 2060, 2575, 3980, 4120, 4975, 5150, 7960, 9950, 10300, 19900, 20497, 20600, 39800, 40994, 81988, 102485, 163976, 204970, 409940, 512425, 819880, 1024850, 2049700, 4099400]

約数ペア:

[(1, 4099400), (2, 2049700), (4, 1024850), (5, 819880), (8, 512425), (10, 409940), (20, 204970), (25, 163976), (40, 102485), (50, 81988), (100, 40994), (103, 39800), (199, 20600), (200, 20497), (206, 19900), (398, 10300), (412, 9950), (515, 7960), (796, 5150), (824, 4975), (995, 4120), (1030, 3980), (1592, 2575), (1990, 2060)]