4011980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28657}}^1$

素因数の和:28673

約数の個数: 24

約数和(自身を含む): 9629088

約数和(自身を除く): 5617108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28657, 57314, 114628, 143285, 200599, 286570, 401198, 573140, 802396, 1002995, 2005990, 4011980]

約数ペア:

[(1, 4011980), (2, 2005990), (4, 1002995), (5, 802396), (7, 573140), (10, 401198), (14, 286570), (20, 200599), (28, 143285), (35, 114628), (70, 57314), (140, 28657)]