65556620

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{18947}}^1$

素因数の和:19129

約数の個数: 24

約数和(自身を含む): 138471984

約数和(自身を除く): 72915364

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 18947, 37894, 75788, 94735, 189470, 378940, 3277831, 6555662, 13111324, 16389155, 32778310, 65556620]

約数ペア:

[(1, 65556620), (2, 32778310), (4, 16389155), (5, 13111324), (10, 6555662), (20, 3277831), (173, 378940), (346, 189470), (692, 94735), (865, 75788), (1730, 37894), (3460, 18947)]