17996720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4591}}^1$

素因数の和:4618

約数の個数: 60

約数和(自身を含む): 48684384

約数和(自身を除く): 30687664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4591, 9182, 18364, 22955, 32137, 36728, 45910, 64274, 73456, 91820, 128548, 160685, 183640, 224959, 257096, 321370, 367280, 449918, 514192, 642740, 899836, 1124795, 1285480, 1799672, 2249590, 2570960, 3599344, 4499180, 8998360, 17996720]

約数ペア:

[(1, 17996720), (2, 8998360), (4, 4499180), (5, 3599344), (7, 2570960), (8, 2249590), (10, 1799672), (14, 1285480), (16, 1124795), (20, 899836), (28, 642740), (35, 514192), (40, 449918), (49, 367280), (56, 321370), (70, 257096), (80, 224959), (98, 183640), (112, 160685), (140, 128548), (196, 91820), (245, 73456), (280, 64274), (392, 45910), (490, 36728), (560, 32137), (784, 22955), (980, 18364), (1960, 9182), (3920, 4591)]