260778819

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 430133760

約数和(自身を除く): 169354941

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 361, 399, 779, 839, 861, 1083, 2337, 2517, 2527, 5453, 5873, 7581, 14801, 15941, 16359, 17619, 34399, 44403, 47823, 103197, 103607, 111587, 240793, 302879, 310821, 334761, 653581, 722379, 908637, 1960743, 2120153, 4575067, 6360459, 12418039, 13725201, 37254117, 86926273, 260778819]

約数ペア:

[(1, 260778819), (3, 86926273), (7, 37254117), (19, 13725201), (21, 12418039), (41, 6360459), (57, 4575067), (123, 2120153), (133, 1960743), (287, 908637), (361, 722379), (399, 653581), (779, 334761), (839, 310821), (861, 302879), (1083, 240793), (2337, 111587), (2517, 103607), (2527, 103197), (5453, 47823), (5873, 44403), (7581, 34399), (14801, 17619), (15941, 16359)]