13409120

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1949}}^1$

素因数の和:2007

約数の個数: 48

約数和(自身を含む): 32432400

約数和(自身を除く): 19023280

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, 1949, 3440, 3898, 6880, 7796, 9745, 15592, 19490, 31184, 38980, 62368, 77960, 83807, 155920, 167614, 311840, 335228, 419035, 670456, 838070, 1340912, 1676140, 2681824, 3352280, 6704560, 13409120]

約数ペア:

[(1, 13409120), (2, 6704560), (4, 3352280), (5, 2681824), (8, 1676140), (10, 1340912), (16, 838070), (20, 670456), (32, 419035), (40, 335228), (43, 311840), (80, 167614), (86, 155920), (160, 83807), (172, 77960), (215, 62368), (344, 38980), (430, 31184), (688, 19490), (860, 15592), (1376, 9745), (1720, 7796), (1949, 6880), (3440, 3898)]