13811320

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{709}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 31183200

約数和(自身を除く): 17371880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 709, 974, 1418, 1948, 2435, 2836, 3545, 3896, 4870, 5672, 7090, 9740, 14180, 19480, 28360, 345283, 690566, 1381132, 1726415, 2762264, 3452830, 6905660, 13811320]

約数ペア:

[(1, 13811320), (2, 6905660), (4, 3452830), (5, 2762264), (8, 1726415), (10, 1381132), (20, 690566), (40, 345283), (487, 28360), (709, 19480), (974, 14180), (1418, 9740), (1948, 7090), (2435, 5672), (2836, 4870), (3545, 3896)]