809996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 1587600

約数和(自身を除く): 777604

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 449, 451, 898, 902, 1796, 1804, 4939, 9878, 18409, 19756, 36818, 73636, 202499, 404998, 809996]

約数ペア:

[(1, 809996), (2, 404998), (4, 202499), (11, 73636), (22, 36818), (41, 19756), (44, 18409), (82, 9878), (164, 4939), (449, 1804), (451, 1796), (898, 902)]