15493960

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{761}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 34975800

約数和(自身を除く): 19481840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 761, 1018, 1522, 2036, 2545, 3044, 3805, 4072, 5090, 6088, 7610, 10180, 15220, 20360, 30440, 387349, 774698, 1549396, 1936745, 3098792, 3873490, 7746980, 15493960]

約数ペア:

[(1, 15493960), (2, 7746980), (4, 3873490), (5, 3098792), (8, 1936745), (10, 1549396), (20, 774698), (40, 387349), (509, 30440), (761, 20360), (1018, 15220), (1522, 10180), (2036, 7610), (2545, 6088), (3044, 5090), (3805, 4072)]