16765720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10223}}^1$

素因数の和:10275

約数の個数: 32

約数和(自身を含む): 38646720

約数和(自身を除く): 21881000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 10223, 20446, 40892, 51115, 81784, 102230, 204460, 408920, 419143, 838286, 1676572, 2095715, 3353144, 4191430, 8382860, 16765720]

約数ペア:

[(1, 16765720), (2, 8382860), (4, 4191430), (5, 3353144), (8, 2095715), (10, 1676572), (20, 838286), (40, 419143), (41, 408920), (82, 204460), (164, 102230), (205, 81784), (328, 51115), (410, 40892), (820, 20446), (1640, 10223)]