81279272

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{327739}}^1$

素因数の和:327776

約数の個数: 16

約数和(自身を含む): 157315200

約数和(自身を除く): 76035928

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 327739, 655478, 1310956, 2621912, 10159909, 20319818, 40639636, 81279272]

約数ペア:

[(1, 81279272), (2, 40639636), (4, 20319818), (8, 10159909), (31, 2621912), (62, 1310956), (124, 655478), (248, 327739)]