8528620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 18805248

約数和(自身を除く): 10276628

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 211, 215, 235, 422, 430, 470, 844, 860, 940, 1055, 2021, 2110, 4042, 4220, 8084, 9073, 9917, 10105, 18146, 19834, 20210, 36292, 39668, 40420, 45365, 49585, 90730, 99170, 181460, 198340, 426431, 852862, 1705724, 2132155, 4264310, 8528620]

約数ペア:

[(1, 8528620), (2, 4264310), (4, 2132155), (5, 1705724), (10, 852862), (20, 426431), (43, 198340), (47, 181460), (86, 99170), (94, 90730), (172, 49585), (188, 45365), (211, 40420), (215, 39668), (235, 36292), (422, 20210), (430, 19834), (470, 18146), (844, 10105), (860, 9917), (940, 9073), (1055, 8084), (2021, 4220), (2110, 4042)]