2689120

素因数分解:

$2^5\times 5^1\times 7^5$

素因数の和:50

約数の個数: 72

約数和(自身を含む): 7411824

約数和(自身を除く): 4722704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 784, 980, 1120, 1372, 1568, 1715, 1960, 2401, 2744, 3430, 3920, 4802, 5488, 6860, 7840, 9604, 10976, 12005, 13720, 16807, 19208, 24010, 27440, 33614, 38416, 48020, 54880, 67228, 76832, 84035, 96040, 134456, 168070, 192080, 268912, 336140, 384160, 537824, 672280, 1344560, 2689120]

約数ペア:

[(1, 2689120), (2, 1344560), (4, 672280), (5, 537824), (7, 384160), (8, 336140), (10, 268912), (14, 192080), (16, 168070), (20, 134456), (28, 96040), (32, 84035), (35, 76832), (40, 67228), (49, 54880), (56, 48020), (70, 38416), (80, 33614), (98, 27440), (112, 24010), (140, 19208), (160, 16807), (196, 13720), (224, 12005), (245, 10976), (280, 9604), (343, 7840), (392, 6860), (490, 5488), (560, 4802), (686, 3920), (784, 3430), (980, 2744), (1120, 2401), (1372, 1960), (1568, 1715)]