81549572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{5581}}^1$

素因数の和:5879

約数の個数: 24

約数和(自身を含む): 154264152

約数和(自身を除く): 72714580

約数列:

[1, 2, 4, 13, 26, 52, 281, 562, 1124, 3653, 5581, 7306, 11162, 14612, 22324, 72553, 145106, 290212, 1568261, 3136522, 6273044, 20387393, 40774786, 81549572]

約数ペア:

[(1, 81549572), (2, 40774786), (4, 20387393), (13, 6273044), (26, 3136522), (52, 1568261), (281, 290212), (562, 145106), (1124, 72553), (3653, 22324), (5581, 14612), (7306, 11162)]