28174420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{7079}}^1$

素因数の和:7287

約数の個数: 24

約数和(自身を含む): 59472000

約数和(自身を除く): 31297580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 7079, 14158, 28316, 35395, 70790, 141580, 1408721, 2817442, 5634884, 7043605, 14087210, 28174420]

約数ペア:

[(1, 28174420), (2, 14087210), (4, 7043605), (5, 5634884), (10, 2817442), (20, 1408721), (199, 141580), (398, 70790), (796, 35395), (995, 28316), (1990, 14158), (3980, 7079)]