20804973140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{148606951}}^1$

素因数の和:148606967

約数の個数: 24

約数和(自身を含む): 49931935872

約数和(自身を除く): 29126962732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 148606951, 297213902, 594427804, 743034755, 1040248657, 1486069510, 2080497314, 2972139020, 4160994628, 5201243285, 10402486570, 20804973140]

約数ペア:

[(1, 20804973140), (2, 10402486570), (4, 5201243285), (5, 4160994628), (7, 2972139020), (10, 2080497314), (14, 1486069510), (20, 1040248657), (28, 743034755), (35, 594427804), (70, 297213902), (140, 148606951)]