13142440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4159}}^1$

素因数の和:4249

約数の個数: 32

約数和(自身を含む): 29952000

約数和(自身を除く): 16809560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 4159, 8318, 16636, 20795, 33272, 41590, 83180, 166360, 328561, 657122, 1314244, 1642805, 2628488, 3285610, 6571220, 13142440]

約数ペア:

[(1, 13142440), (2, 6571220), (4, 3285610), (5, 2628488), (8, 1642805), (10, 1314244), (20, 657122), (40, 328561), (79, 166360), (158, 83180), (316, 41590), (395, 33272), (632, 20795), (790, 16636), (1580, 8318), (3160, 4159)]