51490180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{52541}}^1$

素因数の和:52564

約数の個数: 36

約数和(自身を含む): 125785548

約数和(自身を除く): 74295368

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 52541, 105082, 210164, 262705, 367787, 525410, 735574, 1050820, 1471148, 1838935, 2574509, 3677870, 5149018, 7355740, 10298036, 12872545, 25745090, 51490180]

約数ペア:

[(1, 51490180), (2, 25745090), (4, 12872545), (5, 10298036), (7, 7355740), (10, 5149018), (14, 3677870), (20, 2574509), (28, 1838935), (35, 1471148), (49, 1050820), (70, 735574), (98, 525410), (140, 367787), (196, 262705), (245, 210164), (490, 105082), (980, 52541)]