6642820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8101}}^1$

素因数の和:8151

約数の個数: 24

約数和(自身を含む): 14291928

約数和(自身を除く): 7649108

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 8101, 16202, 32404, 40505, 81010, 162020, 332141, 664282, 1328564, 1660705, 3321410, 6642820]

約数ペア:

[(1, 6642820), (2, 3321410), (4, 1660705), (5, 1328564), (10, 664282), (20, 332141), (41, 162020), (82, 81010), (164, 40505), (205, 32404), (410, 16202), (820, 8101)]