27881315

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 14212765

約数列:

[1, 5, 7, 11, 35, 55, 77, 139, 385, 521, 695, 973, 1529, 2605, 3647, 4865, 5731, 7645, 10703, 18235, 28655, 40117, 53515, 72419, 200585, 362095, 506933, 796609, 2534665, 3983045, 5576263, 27881315]

約数ペア:

[(1, 27881315), (5, 5576263), (7, 3983045), (11, 2534665), (35, 796609), (55, 506933), (77, 362095), (139, 200585), (385, 72419), (521, 53515), (695, 40117), (973, 28655), (1529, 18235), (2605, 10703), (3647, 7645), (4865, 5731)]