81978904

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31147}}^1$

素因数の和:31207

約数の個数: 32

約数和(自身を含む): 179412480

約数和(自身を除く): 97433576

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 31147, 62294, 124588, 218029, 249176, 436058, 872116, 1463909, 1744232, 2927818, 5855636, 10247363, 11711272, 20494726, 40989452, 81978904]

約数ペア:

[(1, 81978904), (2, 40989452), (4, 20494726), (7, 11711272), (8, 10247363), (14, 5855636), (28, 2927818), (47, 1744232), (56, 1463909), (94, 872116), (188, 436058), (329, 249176), (376, 218029), (658, 124588), (1316, 62294), (2632, 31147)]