461440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{103}}^1$

素因数の和:129

約数の個数: 64

約数和(自身を含む): 1272960

約数和(自身を除く): 811520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 103, 112, 128, 140, 160, 206, 224, 280, 320, 412, 448, 515, 560, 640, 721, 824, 896, 1030, 1120, 1442, 1648, 2060, 2240, 2884, 3296, 3605, 4120, 4480, 5768, 6592, 7210, 8240, 11536, 13184, 14420, 16480, 23072, 28840, 32960, 46144, 57680, 65920, 92288, 115360, 230720, 461440]

約数ペア:

[(1, 461440), (2, 230720), (4, 115360), (5, 92288), (7, 65920), (8, 57680), (10, 46144), (14, 32960), (16, 28840), (20, 23072), (28, 16480), (32, 14420), (35, 13184), (40, 11536), (56, 8240), (64, 7210), (70, 6592), (80, 5768), (103, 4480), (112, 4120), (128, 3605), (140, 3296), (160, 2884), (206, 2240), (224, 2060), (280, 1648), (320, 1442), (412, 1120), (448, 1030), (515, 896), (560, 824), (640, 721)]