858555820

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{26713}}^1$

素因数の和:28329

約数の個数: 24

約数和(自身を含む): 1804156704

約数和(自身を除く): 945600884

約数列:

[1, 2, 4, 5, 10, 20, 1607, 3214, 6428, 8035, 16070, 26713, 32140, 53426, 106852, 133565, 267130, 534260, 42927791, 85855582, 171711164, 214638955, 429277910, 858555820]

約数ペア:

[(1, 858555820), (2, 429277910), (4, 214638955), (5, 171711164), (10, 85855582), (20, 42927791), (1607, 534260), (3214, 267130), (6428, 133565), (8035, 106852), (16070, 53426), (26713, 32140)]