40904017

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{383}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 54558720

約数和(自身を除く): 13654703

約数列:

[1, 7, 11, 19, 73, 77, 133, 209, 383, 511, 803, 1387, 1463, 2681, 4213, 5621, 7277, 9709, 15257, 27959, 29491, 50939, 80047, 106799, 195713, 307549, 531221, 560329, 2152843, 3718547, 5843431, 40904017]

約数ペア:

[(1, 40904017), (7, 5843431), (11, 3718547), (19, 2152843), (73, 560329), (77, 531221), (133, 307549), (209, 195713), (383, 106799), (511, 80047), (803, 50939), (1387, 29491), (1463, 27959), (2681, 15257), (4213, 9709), (5621, 7277)]