13240840

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7043}}^1$

素因数の和:7101

約数の個数: 32

約数和(自身を含む): 30430080

約数和(自身を除く): 17189240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 7043, 14086, 28172, 35215, 56344, 70430, 140860, 281720, 331021, 662042, 1324084, 1655105, 2648168, 3310210, 6620420, 13240840]

約数ペア:

[(1, 13240840), (2, 6620420), (4, 3310210), (5, 2648168), (8, 1655105), (10, 1324084), (20, 662042), (40, 331021), (47, 281720), (94, 140860), (188, 70430), (235, 56344), (376, 35215), (470, 28172), (940, 14086), (1880, 7043)]