640915946

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3623}}^1$

素因数の和:3707

約数の個数: 48

約数和(自身を含む): 1145212992

約数和(自身を除く): 504297046

約数列:

[1, 2, 11, 17, 22, 34, 43, 86, 121, 187, 242, 374, 473, 731, 946, 1462, 2057, 3623, 4114, 5203, 7246, 8041, 10406, 16082, 39853, 61591, 79706, 88451, 123182, 155789, 176902, 311578, 438383, 677501, 876766, 1355002, 1713679, 2648413, 3427358, 5296826, 7452511, 14905022, 18850469, 29132543, 37700938, 58265086, 320457973, 640915946]

約数ペア:

[(1, 640915946), (2, 320457973), (11, 58265086), (17, 37700938), (22, 29132543), (34, 18850469), (43, 14905022), (86, 7452511), (121, 5296826), (187, 3427358), (242, 2648413), (374, 1713679), (473, 1355002), (731, 876766), (946, 677501), (1462, 438383), (2057, 311578), (3623, 176902), (4114, 155789), (5203, 123182), (7246, 88451), (8041, 79706), (10406, 61591), (16082, 39853)]