81487364

素因数分解:

$2^2\times 7^1\times {\mathrm{683}}^1\times {\mathrm{4261}}^1$

素因数の和:4955

約数の個数: 24

約数和(自身を含む): 163251648

約数和(自身を除く): 81764284

約数列:

[1, 2, 4, 7, 14, 28, 683, 1366, 2732, 4261, 4781, 8522, 9562, 17044, 19124, 29827, 59654, 119308, 2910263, 5820526, 11641052, 20371841, 40743682, 81487364]

約数ペア:

[(1, 81487364), (2, 40743682), (4, 20371841), (7, 11641052), (14, 5820526), (28, 2910263), (683, 119308), (1366, 59654), (2732, 29827), (4261, 19124), (4781, 17044), (8522, 9562)]