20666640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86111}}^1$

素因数の和:86127

約数の個数: 40

約数和(自身を含む): 64067328

約数和(自身を除く): 43400688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86111, 172222, 258333, 344444, 430555, 516666, 688888, 861110, 1033332, 1291665, 1377776, 1722220, 2066664, 2583330, 3444440, 4133328, 5166660, 6888880, 10333320, 20666640]

約数ペア:

[(1, 20666640), (2, 10333320), (3, 6888880), (4, 5166660), (5, 4133328), (6, 3444440), (8, 2583330), (10, 2066664), (12, 1722220), (15, 1377776), (16, 1291665), (20, 1033332), (24, 861110), (30, 688888), (40, 516666), (48, 430555), (60, 344444), (80, 258333), (120, 172222), (240, 86111)]