25678510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17957}}^1$

素因数の和:17988

約数の個数: 32

約数和(自身を含む): 54304992

約数和(自身を除く): 28626482

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 17957, 35914, 89785, 179570, 197527, 233441, 395054, 466882, 987635, 1167205, 1975270, 2334410, 2567851, 5135702, 12839255, 25678510]

約数ペア:

[(1, 25678510), (2, 12839255), (5, 5135702), (10, 2567851), (11, 2334410), (13, 1975270), (22, 1167205), (26, 987635), (55, 466882), (65, 395054), (110, 233441), (130, 197527), (143, 179570), (286, 89785), (715, 35914), (1430, 17957)]