80780840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2801}}^1$

素因数の和:2922

約数の個数: 64

約数和(自身を含む): 209813760

約数和(自身を除く): 129032920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 1030, 1442, 2060, 2801, 2884, 3605, 4120, 5602, 5768, 7210, 11204, 14005, 14420, 19607, 22408, 28010, 28840, 39214, 56020, 78428, 98035, 112040, 156856, 196070, 288503, 392140, 577006, 784280, 1154012, 1442515, 2019521, 2308024, 2885030, 4039042, 5770060, 8078084, 10097605, 11540120, 16156168, 20195210, 40390420, 80780840]

約数ペア:

[(1, 80780840), (2, 40390420), (4, 20195210), (5, 16156168), (7, 11540120), (8, 10097605), (10, 8078084), (14, 5770060), (20, 4039042), (28, 2885030), (35, 2308024), (40, 2019521), (56, 1442515), (70, 1154012), (103, 784280), (140, 577006), (206, 392140), (280, 288503), (412, 196070), (515, 156856), (721, 112040), (824, 98035), (1030, 78428), (1442, 56020), (2060, 39214), (2801, 28840), (2884, 28010), (3605, 22408), (4120, 19607), (5602, 14420), (5768, 14005), (7210, 11204)]