11780840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{5557}}^1$

素因数の和:5621

約数の個数: 32

約数和(自身を含む): 27011880

約数和(自身を除く): 15231040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 5557, 11114, 22228, 27785, 44456, 55570, 111140, 222280, 294521, 589042, 1178084, 1472605, 2356168, 2945210, 5890420, 11780840]

約数ペア:

[(1, 11780840), (2, 5890420), (4, 2945210), (5, 2356168), (8, 1472605), (10, 1178084), (20, 589042), (40, 294521), (53, 222280), (106, 111140), (212, 55570), (265, 44456), (424, 27785), (530, 22228), (1060, 11114), (2120, 5557)]