18155920

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1787}}^1$

素因数の和:1927

約数の個数: 40

約数和(自身を含む): 42568704

約数和(自身を除く): 24412784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 1787, 2032, 2540, 3574, 5080, 7148, 8935, 10160, 14296, 17870, 28592, 35740, 71480, 142960, 226949, 453898, 907796, 1134745, 1815592, 2269490, 3631184, 4538980, 9077960, 18155920]

約数ペア:

[(1, 18155920), (2, 9077960), (4, 4538980), (5, 3631184), (8, 2269490), (10, 1815592), (16, 1134745), (20, 907796), (40, 453898), (80, 226949), (127, 142960), (254, 71480), (508, 35740), (635, 28592), (1016, 17870), (1270, 14296), (1787, 10160), (2032, 8935), (2540, 7148), (3574, 5080)]