40397390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2029}}^1$

素因数の和:2228

約数の個数: 32

約数和(自身を含む): 79803360

約数和(自身を除く): 39405970

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 181, 362, 905, 1810, 1991, 2029, 3982, 4058, 9955, 10145, 19910, 20290, 22319, 44638, 111595, 223190, 367249, 734498, 1836245, 3672490, 4039739, 8079478, 20198695, 40397390]

約数ペア:

[(1, 40397390), (2, 20198695), (5, 8079478), (10, 4039739), (11, 3672490), (22, 1836245), (55, 734498), (110, 367249), (181, 223190), (362, 111595), (905, 44638), (1810, 22319), (1991, 20290), (2029, 19910), (3982, 10145), (4058, 9955)]