2980180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{3041}}^1$

素因数の和:3064

約数の個数: 36

約数和(自身を含む): 7282548

約数和(自身を除く): 4302368

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 3041, 6082, 12164, 15205, 21287, 30410, 42574, 60820, 85148, 106435, 149009, 212870, 298018, 425740, 596036, 745045, 1490090, 2980180]

約数ペア:

[(1, 2980180), (2, 1490090), (4, 745045), (5, 596036), (7, 425740), (10, 298018), (14, 212870), (20, 149009), (28, 106435), (35, 85148), (49, 60820), (70, 42574), (98, 30410), (140, 21287), (196, 15205), (245, 12164), (490, 6082), (980, 3041)]