2019850

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 4464000

約数和(自身を除く): 2444150

約数列:

[1, 2, 5, 7, 10, 14, 25, 29, 35, 50, 58, 70, 145, 175, 199, 203, 290, 350, 398, 406, 725, 995, 1015, 1393, 1450, 1990, 2030, 2786, 4975, 5075, 5771, 6965, 9950, 10150, 11542, 13930, 28855, 34825, 40397, 57710, 69650, 80794, 144275, 201985, 288550, 403970, 1009925, 2019850]

約数ペア:

[(1, 2019850), (2, 1009925), (5, 403970), (7, 288550), (10, 201985), (14, 144275), (25, 80794), (29, 69650), (35, 57710), (50, 40397), (58, 34825), (70, 28855), (145, 13930), (175, 11542), (199, 10150), (203, 9950), (290, 6965), (350, 5771), (398, 5075), (406, 4975), (725, 2786), (995, 2030), (1015, 1990), (1393, 1450)]