2018800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{103}}^1$

素因数の和:135

約数の個数: 90

約数和(自身を含む): 5696808

約数和(自身を除く): 3678008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 103, 112, 140, 175, 196, 200, 206, 245, 280, 350, 392, 400, 412, 490, 515, 560, 700, 721, 784, 824, 980, 1030, 1225, 1400, 1442, 1648, 1960, 2060, 2450, 2575, 2800, 2884, 3605, 3920, 4120, 4900, 5047, 5150, 5768, 7210, 8240, 9800, 10094, 10300, 11536, 14420, 18025, 19600, 20188, 20600, 25235, 28840, 36050, 40376, 41200, 50470, 57680, 72100, 80752, 100940, 126175, 144200, 201880, 252350, 288400, 403760, 504700, 1009400, 2018800]

約数ペア:

[(1, 2018800), (2, 1009400), (4, 504700), (5, 403760), (7, 288400), (8, 252350), (10, 201880), (14, 144200), (16, 126175), (20, 100940), (25, 80752), (28, 72100), (35, 57680), (40, 50470), (49, 41200), (50, 40376), (56, 36050), (70, 28840), (80, 25235), (98, 20600), (100, 20188), (103, 19600), (112, 18025), (140, 14420), (175, 11536), (196, 10300), (200, 10094), (206, 9800), (245, 8240), (280, 7210), (350, 5768), (392, 5150), (400, 5047), (412, 4900), (490, 4120), (515, 3920), (560, 3605), (700, 2884), (721, 2800), (784, 2575), (824, 2450), (980, 2060), (1030, 1960), (1225, 1648), (1400, 1442)]