129359950

素因数分解:

$2^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{13001}}^1$

素因数の和:13212

約数の個数: 24

約数和(自身を含む): 241837200

約数和(自身を除く): 112477250

約数列:

[1, 2, 5, 10, 25, 50, 199, 398, 995, 1990, 4975, 9950, 13001, 26002, 65005, 130010, 325025, 650050, 2587199, 5174398, 12935995, 25871990, 64679975, 129359950]

約数ペア:

[(1, 129359950), (2, 64679975), (5, 25871990), (10, 12935995), (25, 5174398), (50, 2587199), (199, 650050), (398, 325025), (995, 130010), (1990, 65005), (4975, 26002), (9950, 13001)]