12428420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{7487}}^1$

素因数の和:7579

約数の個数: 24

約数和(自身を含む): 26417664

約数和(自身を除く): 13989244

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 7487, 14974, 29948, 37435, 74870, 149740, 621421, 1242842, 2485684, 3107105, 6214210, 12428420]

約数ペア:

[(1, 12428420), (2, 6214210), (4, 3107105), (5, 2485684), (10, 1242842), (20, 621421), (83, 149740), (166, 74870), (332, 37435), (415, 29948), (830, 14974), (1660, 7487)]