25578620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{16189}}^1$

素因数の和:16277

約数の個数: 24

約数和(自身を含む): 54398400

約数和(自身を除く): 28819780

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 16189, 32378, 64756, 80945, 161890, 323780, 1278931, 2557862, 5115724, 6394655, 12789310, 25578620]

約数ペア:

[(1, 25578620), (2, 12789310), (4, 6394655), (5, 5115724), (10, 2557862), (20, 1278931), (79, 323780), (158, 161890), (316, 80945), (395, 64756), (790, 32378), (1580, 16189)]