305039140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{10949}}^1$

素因数の和:11164

約数の個数: 48

約数和(自身を含む): 735840000

約数和(自身を除く): 430800860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2786, 3980, 5572, 6965, 10949, 13930, 21898, 27860, 43796, 54745, 76643, 109490, 153286, 218980, 306572, 383215, 766430, 1532860, 2178851, 4357702, 8715404, 10894255, 15251957, 21788510, 30503914, 43577020, 61007828, 76259785, 152519570, 305039140]

約数ペア:

[(1, 305039140), (2, 152519570), (4, 76259785), (5, 61007828), (7, 43577020), (10, 30503914), (14, 21788510), (20, 15251957), (28, 10894255), (35, 8715404), (70, 4357702), (140, 2178851), (199, 1532860), (398, 766430), (796, 383215), (995, 306572), (1393, 218980), (1990, 153286), (2786, 109490), (3980, 76643), (5572, 54745), (6965, 43796), (10949, 27860), (13930, 21898)]