13121840

素因数分解:

$2^4\times 5^1\times {\mathrm{164023}}^1$

素因数の和:164036

約数の個数: 20

約数和(自身を含む): 30508464

約数和(自身を除く): 17386624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 164023, 328046, 656092, 820115, 1312184, 1640230, 2624368, 3280460, 6560920, 13121840]

約数ペア:

[(1, 13121840), (2, 6560920), (4, 3280460), (5, 2624368), (8, 1640230), (10, 1312184), (16, 820115), (20, 656092), (40, 328046), (80, 164023)]