257130818

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1\times {\mathrm{577}}^1$

素因数の和:954

約数の個数: 32

約数和(自身を含む): 446678400

約数和(自身を除く): 189547582

約数列:

[1, 2, 7, 14, 139, 229, 278, 458, 577, 973, 1154, 1603, 1946, 3206, 4039, 8078, 31831, 63662, 80203, 132133, 160406, 222817, 264266, 445634, 561421, 924931, 1122842, 1849862, 18366487, 36732974, 128565409, 257130818]

約数ペア:

[(1, 257130818), (2, 128565409), (7, 36732974), (14, 18366487), (139, 1849862), (229, 1122842), (278, 924931), (458, 561421), (577, 445634), (973, 264266), (1154, 222817), (1603, 160406), (1946, 132133), (3206, 80203), (4039, 63662), (8078, 31831)]