20478350

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^2\times {\mathrm{487}}^1$

素因数の和:557

約数の個数: 36

約数和(自身を含む): 39529464

約数和(自身を除く): 19051114

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 487, 725, 841, 974, 1450, 1682, 2435, 4205, 4870, 8410, 12175, 14123, 21025, 24350, 28246, 42050, 70615, 141230, 353075, 409567, 706150, 819134, 2047835, 4095670, 10239175, 20478350]

約数ペア:

[(1, 20478350), (2, 10239175), (5, 4095670), (10, 2047835), (25, 819134), (29, 706150), (50, 409567), (58, 353075), (145, 141230), (290, 70615), (487, 42050), (725, 28246), (841, 24350), (974, 21025), (1450, 14123), (1682, 12175), (2435, 8410), (4205, 4870)]