15406985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 21209472

約数和(自身を除く): 5802487

約数列:

[1, 5, 11, 37, 55, 67, 113, 185, 335, 407, 565, 737, 1243, 2035, 2479, 3685, 4181, 6215, 7571, 12395, 20905, 27269, 37855, 45991, 83281, 136345, 229955, 280127, 416405, 1400635, 3081397, 15406985]

約数ペア:

[(1, 15406985), (5, 3081397), (11, 1400635), (37, 416405), (55, 280127), (67, 229955), (113, 136345), (185, 83281), (335, 45991), (407, 37855), (565, 27269), (737, 20905), (1243, 12395), (2035, 7571), (2479, 6215), (3685, 4181)]