77661940

素因数分解:

$2^2\times 5^1\times {\mathrm{1307}}^1\times {\mathrm{2971}}^1$

素因数の和:4287

約数の個数: 24

約数和(自身を含む): 163269792

約数和(自身を除く): 85607852

約数列:

[1, 2, 4, 5, 10, 20, 1307, 2614, 2971, 5228, 5942, 6535, 11884, 13070, 14855, 26140, 29710, 59420, 3883097, 7766194, 15532388, 19415485, 38830970, 77661940]

約数ペア:

[(1, 77661940), (2, 38830970), (4, 19415485), (5, 15532388), (10, 7766194), (20, 3883097), (1307, 59420), (2614, 29710), (2971, 26140), (5228, 14855), (5942, 13070), (6535, 11884)]