991870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:216

約数の個数: 32

約数和(自身を含む): 1990656

約数和(自身を除く): 998786

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 127, 142, 254, 355, 635, 710, 781, 1270, 1397, 1562, 2794, 3905, 6985, 7810, 9017, 13970, 18034, 45085, 90170, 99187, 198374, 495935, 991870]

約数ペア:

[(1, 991870), (2, 495935), (5, 198374), (10, 99187), (11, 90170), (22, 45085), (55, 18034), (71, 13970), (110, 9017), (127, 7810), (142, 6985), (254, 3905), (355, 2794), (635, 1562), (710, 1397), (781, 1270)]