920778860

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{28649}}^1$

素因数の和:30265

約数の個数: 24

約数和(自身を含む): 1934906400

約数和(自身を除く): 1014127540

約数列:

[1, 2, 4, 5, 10, 20, 1607, 3214, 6428, 8035, 16070, 28649, 32140, 57298, 114596, 143245, 286490, 572980, 46038943, 92077886, 184155772, 230194715, 460389430, 920778860]

約数ペア:

[(1, 920778860), (2, 460389430), (4, 230194715), (5, 184155772), (10, 92077886), (20, 46038943), (1607, 572980), (3214, 286490), (6428, 143245), (8035, 114596), (16070, 57298), (28649, 32140)]