18122900

素因数分解:

$2^2\times 5^2\times {\mathrm{127}}^1\times {\mathrm{1427}}^1$

素因数の和:1568

約数の個数: 36

約数和(自身を含む): 39664128

約数和(自身を除く): 21541228

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 127, 254, 508, 635, 1270, 1427, 2540, 2854, 3175, 5708, 6350, 7135, 12700, 14270, 28540, 35675, 71350, 142700, 181229, 362458, 724916, 906145, 1812290, 3624580, 4530725, 9061450, 18122900]

約数ペア:

[(1, 18122900), (2, 9061450), (4, 4530725), (5, 3624580), (10, 1812290), (20, 906145), (25, 724916), (50, 362458), (100, 181229), (127, 142700), (254, 71350), (508, 35675), (635, 28540), (1270, 14270), (1427, 12700), (2540, 7135), (2854, 6350), (3175, 5708)]