16481180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 35985600

約数和(自身を除く): 19504420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 101, 164, 199, 202, 205, 398, 404, 410, 505, 796, 820, 995, 1010, 1990, 2020, 3980, 4141, 8159, 8282, 16318, 16564, 20099, 20705, 32636, 40198, 40795, 41410, 80396, 81590, 82820, 100495, 163180, 200990, 401980, 824059, 1648118, 3296236, 4120295, 8240590, 16481180]

約数ペア:

[(1, 16481180), (2, 8240590), (4, 4120295), (5, 3296236), (10, 1648118), (20, 824059), (41, 401980), (82, 200990), (101, 163180), (164, 100495), (199, 82820), (202, 81590), (205, 80396), (398, 41410), (404, 40795), (410, 40198), (505, 32636), (796, 20705), (820, 20099), (995, 16564), (1010, 16318), (1990, 8282), (2020, 8159), (3980, 4141)]