721000206

素因数分解:

$2^1\times 3^2\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{2477}}^1$

素因数の和:2745

約数の個数: 48

約数和(自身を含む): 1588021344

約数和(自身を除く): 867021138

約数列:

[1, 2, 3, 6, 9, 18, 103, 157, 206, 309, 314, 471, 618, 927, 942, 1413, 1854, 2477, 2826, 4954, 7431, 14862, 16171, 22293, 32342, 44586, 48513, 97026, 145539, 255131, 291078, 388889, 510262, 765393, 777778, 1166667, 1530786, 2296179, 2333334, 3500001, 4592358, 7000002, 40055567, 80111134, 120166701, 240333402, 360500103, 721000206]

約数ペア:

[(1, 721000206), (2, 360500103), (3, 240333402), (6, 120166701), (9, 80111134), (18, 40055567), (103, 7000002), (157, 4592358), (206, 3500001), (309, 2333334), (314, 2296179), (471, 1530786), (618, 1166667), (927, 777778), (942, 765393), (1413, 510262), (1854, 388889), (2477, 291078), (2826, 255131), (4954, 145539), (7431, 97026), (14862, 48513), (16171, 44586), (22293, 32342)]