40642780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{43237}}^1$

素因数の和:43293

約数の個数: 24

約数和(自身を含む): 87167808

約数和(自身を除く): 46525028

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 43237, 86474, 172948, 216185, 432370, 864740, 2032139, 4064278, 8128556, 10160695, 20321390, 40642780]

約数ペア:

[(1, 40642780), (2, 20321390), (4, 10160695), (5, 8128556), (10, 4064278), (20, 2032139), (47, 864740), (94, 432370), (188, 216185), (235, 172948), (470, 86474), (940, 43237)]