66806120

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3347}}^1$

素因数の和:3857

約数の個数: 32

約数和(自身を含む): 150660000

約数和(自身を除く): 83853880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3347, 3992, 4990, 6694, 9980, 13388, 16735, 19960, 26776, 33470, 66940, 133880, 1670153, 3340306, 6680612, 8350765, 13361224, 16701530, 33403060, 66806120]

約数ペア:

[(1, 66806120), (2, 33403060), (4, 16701530), (5, 13361224), (8, 8350765), (10, 6680612), (20, 3340306), (40, 1670153), (499, 133880), (998, 66940), (1996, 33470), (2495, 26776), (3347, 19960), (3992, 16735), (4990, 13388), (6694, 9980)]