20716750

素因数分解:

$2^1\times 5^3\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 18370610

約数列:

[1, 2, 5, 10, 25, 50, 125, 173, 250, 346, 479, 865, 958, 1730, 2395, 4325, 4790, 8650, 11975, 21625, 23950, 43250, 59875, 82867, 119750, 165734, 414335, 828670, 2071675, 4143350, 10358375, 20716750]

約数ペア:

[(1, 20716750), (2, 10358375), (5, 4143350), (10, 2071675), (25, 828670), (50, 414335), (125, 165734), (173, 119750), (250, 82867), (346, 59875), (479, 43250), (865, 23950), (958, 21625), (1730, 11975), (2395, 8650), (4325, 4790)]