15986540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 35592480

約数和(自身を除く): 19605940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 641, 860, 1247, 1282, 2494, 2564, 3205, 4988, 6235, 6410, 12470, 12820, 18589, 24940, 27563, 37178, 55126, 74356, 92945, 110252, 137815, 185890, 275630, 371780, 551260, 799327, 1598654, 3197308, 3996635, 7993270, 15986540]

約数ペア:

[(1, 15986540), (2, 7993270), (4, 3996635), (5, 3197308), (10, 1598654), (20, 799327), (29, 551260), (43, 371780), (58, 275630), (86, 185890), (116, 137815), (145, 110252), (172, 92945), (215, 74356), (290, 55126), (430, 37178), (580, 27563), (641, 24940), (860, 18589), (1247, 12820), (1282, 12470), (2494, 6410), (2564, 6235), (3205, 4988)]