13161440

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1971

約数の個数: 48

約数和(自身を含む): 31833648

約数和(自身を除く): 18672208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 1913, 3440, 3826, 6880, 7652, 9565, 15304, 19130, 30608, 38260, 61216, 76520, 82259, 153040, 164518, 306080, 329036, 411295, 658072, 822590, 1316144, 1645180, 2632288, 3290360, 6580720, 13161440]

約数ペア:

[(1, 13161440), (2, 6580720), (4, 3290360), (5, 2632288), (8, 1645180), (10, 1316144), (16, 822590), (20, 658072), (32, 411295), (40, 329036), (43, 306080), (80, 164518), (86, 153040), (160, 82259), (172, 76520), (215, 61216), (344, 38260), (430, 30608), (688, 19130), (860, 15304), (1376, 9565), (1720, 7652), (1913, 6880), (3440, 3826)]