1620916

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 36

約数和(自身を含む): 3318084

約数和(自身を除く): 1697168

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 197, 242, 374, 394, 484, 748, 788, 2057, 2167, 3349, 4114, 4334, 6698, 8228, 8668, 13396, 23837, 36839, 47674, 73678, 95348, 147356, 405229, 810458, 1620916]

約数ペア:

[(1, 1620916), (2, 810458), (4, 405229), (11, 147356), (17, 95348), (22, 73678), (34, 47674), (44, 36839), (68, 23837), (121, 13396), (187, 8668), (197, 8228), (242, 6698), (374, 4334), (394, 4114), (484, 3349), (748, 2167), (788, 2057)]