66563980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{475457}}^1$

素因数の和:475473

約数の個数: 24

約数和(自身を含む): 159753888

約数和(自身を除く): 93189908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 475457, 950914, 1901828, 2377285, 3328199, 4754570, 6656398, 9509140, 13312796, 16640995, 33281990, 66563980]

約数ペア:

[(1, 66563980), (2, 33281990), (4, 16640995), (5, 13312796), (7, 9509140), (10, 6656398), (14, 4754570), (20, 3328199), (28, 2377285), (35, 1901828), (70, 950914), (140, 475457)]