12840015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 22277376

約数和(自身を除く): 9437361

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 1171, 2193, 3513, 3655, 5855, 10965, 17565, 19907, 50353, 59721, 99535, 151059, 251765, 298605, 755295, 856001, 2568003, 4280005, 12840015]

約数ペア:

[(1, 12840015), (3, 4280005), (5, 2568003), (15, 856001), (17, 755295), (43, 298605), (51, 251765), (85, 151059), (129, 99535), (215, 59721), (255, 50353), (645, 19907), (731, 17565), (1171, 10965), (2193, 5855), (3513, 3655)]