289380454

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{27809}}^1$

素因数の和:27876

約数の個数: 24

約数和(自身を含む): 488232360

約数和(自身を除く): 198851906

約数列:

[1, 2, 11, 22, 43, 86, 121, 242, 473, 946, 5203, 10406, 27809, 55618, 305899, 611798, 1195787, 2391574, 3364889, 6729778, 13153657, 26307314, 144690227, 289380454]

約数ペア:

[(1, 289380454), (2, 144690227), (11, 26307314), (22, 13153657), (43, 6729778), (86, 3364889), (121, 2391574), (242, 1195787), (473, 611798), (946, 305899), (5203, 55618), (10406, 27809)]