40213280

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1979}}^1$

素因数の和:2121

約数の個数: 48

約数和(自身を含む): 95800320

約数和(自身を除く): 55587040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 1979, 2032, 2540, 3958, 4064, 5080, 7916, 9895, 10160, 15832, 19790, 20320, 31664, 39580, 63328, 79160, 158320, 251333, 316640, 502666, 1005332, 1256665, 2010664, 2513330, 4021328, 5026660, 8042656, 10053320, 20106640, 40213280]

約数ペア:

[(1, 40213280), (2, 20106640), (4, 10053320), (5, 8042656), (8, 5026660), (10, 4021328), (16, 2513330), (20, 2010664), (32, 1256665), (40, 1005332), (80, 502666), (127, 316640), (160, 251333), (254, 158320), (508, 79160), (635, 63328), (1016, 39580), (1270, 31664), (1979, 20320), (2032, 19790), (2540, 15832), (3958, 10160), (4064, 9895), (5080, 7916)]