13686520

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1301}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 30935520

約数和(自身を除く): 17249000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1301, 1315, 2104, 2602, 2630, 5204, 5260, 6505, 10408, 10520, 13010, 26020, 52040, 342163, 684326, 1368652, 1710815, 2737304, 3421630, 6843260, 13686520]

約数ペア:

[(1, 13686520), (2, 6843260), (4, 3421630), (5, 2737304), (8, 1710815), (10, 1368652), (20, 684326), (40, 342163), (263, 52040), (526, 26020), (1052, 13010), (1301, 10520), (1315, 10408), (2104, 6505), (2602, 5260), (2630, 5204)]