40765220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{21013}}^1$

素因数の和:21119

約数の個数: 24

約数和(自身を含む): 86493624

約数和(自身を除く): 45728404

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 21013, 42026, 84052, 105065, 210130, 420260, 2038261, 4076522, 8153044, 10191305, 20382610, 40765220]

約数ペア:

[(1, 40765220), (2, 20382610), (4, 10191305), (5, 8153044), (10, 4076522), (20, 2038261), (97, 420260), (194, 210130), (388, 105065), (485, 84052), (970, 42026), (1940, 21013)]