20278388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1439}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 38384640

約数和(自身を除く): 18106252

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 1084, 1439, 2878, 3523, 5756, 7046, 14092, 18707, 37414, 74828, 389969, 779938, 1559876, 5069597, 10139194, 20278388]

約数ペア:

[(1, 20278388), (2, 10139194), (4, 5069597), (13, 1559876), (26, 779938), (52, 389969), (271, 74828), (542, 37414), (1084, 18707), (1439, 14092), (2878, 7046), (3523, 5756)]