205215790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1097}}^1\times {\mathrm{1439}}^1$

素因数の和:2556

約数の個数: 32

約数和(自身を含む): 398442240

約数和(自身を除く): 193226450

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1097, 1439, 2194, 2878, 5485, 7195, 10970, 14261, 14390, 18707, 28522, 37414, 71305, 93535, 142610, 187070, 1578583, 3157166, 7892915, 15785830, 20521579, 41043158, 102607895, 205215790]

約数ペア:

[(1, 205215790), (2, 102607895), (5, 41043158), (10, 20521579), (13, 15785830), (26, 7892915), (65, 3157166), (130, 1578583), (1097, 187070), (1439, 142610), (2194, 93535), (2878, 71305), (5485, 37414), (7195, 28522), (10970, 18707), (14261, 14390)]