81298864

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163909}}^1$

素因数の和:163948

約数の個数: 20

約数和(自身を含む): 162598720

約数和(自身を除く): 81299856

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 163909, 327818, 655636, 1311272, 2622544, 5081179, 10162358, 20324716, 40649432, 81298864]

約数ペア:

[(1, 81298864), (2, 40649432), (4, 20324716), (8, 10162358), (16, 5081179), (31, 2622544), (62, 1311272), (124, 655636), (248, 327818), (496, 163909)]