7785220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4013}}^1$

素因数の和:4119

約数の個数: 24

約数和(自身を含む): 16521624

約数和(自身を除く): 8736404

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 4013, 8026, 16052, 20065, 40130, 80260, 389261, 778522, 1557044, 1946305, 3892610, 7785220]

約数ペア:

[(1, 7785220), (2, 3892610), (4, 1946305), (5, 1557044), (10, 778522), (20, 389261), (97, 80260), (194, 40130), (388, 20065), (485, 16052), (970, 8026), (1940, 4013)]