81643264

素因数分解:

$2^8\times {\mathrm{318919}}^1$

素因数の和:318935

約数の個数: 18

約数和(自身を含む): 162968120

約数和(自身を除く): 81324856

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 318919, 637838, 1275676, 2551352, 5102704, 10205408, 20410816, 40821632, 81643264]

約数ペア:

[(1, 81643264), (2, 40821632), (4, 20410816), (8, 10205408), (16, 5102704), (32, 2551352), (64, 1275676), (128, 637838), (256, 318919)]