82147540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 177375744

約数和(自身を除く): 95228204

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 281, 311, 470, 562, 622, 940, 1124, 1244, 1405, 1555, 2810, 3110, 5620, 6220, 13207, 14617, 26414, 29234, 52828, 58468, 66035, 73085, 87391, 132070, 146170, 174782, 264140, 292340, 349564, 436955, 873910, 1747820, 4107377, 8214754, 16429508, 20536885, 41073770, 82147540]

約数ペア:

[(1, 82147540), (2, 41073770), (4, 20536885), (5, 16429508), (10, 8214754), (20, 4107377), (47, 1747820), (94, 873910), (188, 436955), (235, 349564), (281, 292340), (311, 264140), (470, 174782), (562, 146170), (622, 132070), (940, 87391), (1124, 73085), (1244, 66035), (1405, 58468), (1555, 52828), (2810, 29234), (3110, 26414), (5620, 14617), (6220, 13207)]