13105720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3181}}^1$

素因数の和:3295

約数の個数: 32

約数和(自身を含む): 29783520

約数和(自身を除く): 16677800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 3181, 4120, 6362, 12724, 15905, 25448, 31810, 63620, 127240, 327643, 655286, 1310572, 1638215, 2621144, 3276430, 6552860, 13105720]

約数ペア:

[(1, 13105720), (2, 6552860), (4, 3276430), (5, 2621144), (8, 1638215), (10, 1310572), (20, 655286), (40, 327643), (103, 127240), (206, 63620), (412, 31810), (515, 25448), (824, 15905), (1030, 12724), (2060, 6362), (3181, 4120)]