81257508

素因数分解:

$2^2\times 3^2\times {\mathrm{419}}^1\times {\mathrm{5387}}^1$

素因数の和:5816

約数の個数: 36

約数和(自身を含む): 205929360

約数和(自身を除く): 124671852

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 419, 838, 1257, 1676, 2514, 3771, 5028, 5387, 7542, 10774, 15084, 16161, 21548, 32322, 48483, 64644, 96966, 193932, 2257153, 4514306, 6771459, 9028612, 13542918, 20314377, 27085836, 40628754, 81257508]

約数ペア:

[(1, 81257508), (2, 40628754), (3, 27085836), (4, 20314377), (6, 13542918), (9, 9028612), (12, 6771459), (18, 4514306), (36, 2257153), (419, 193932), (838, 96966), (1257, 64644), (1676, 48483), (2514, 32322), (3771, 21548), (5028, 16161), (5387, 15084), (7542, 10774)]