81731272

素因数分解:

$2^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{6917}}^1$

素因数の和:7141

約数の個数: 32

約数和(自身を含む): 175993920

約数和(自身を除く): 94262648

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 211, 422, 844, 1477, 1688, 2954, 5908, 6917, 11816, 13834, 27668, 48419, 55336, 96838, 193676, 387352, 1459487, 2918974, 5837948, 10216409, 11675896, 20432818, 40865636, 81731272]

約数ペア:

[(1, 81731272), (2, 40865636), (4, 20432818), (7, 11675896), (8, 10216409), (14, 5837948), (28, 2918974), (56, 1459487), (211, 387352), (422, 193676), (844, 96838), (1477, 55336), (1688, 48419), (2954, 27668), (5908, 13834), (6917, 11816)]