138720659

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 194365440

約数和(自身を除く): 55644781

約数列:

[1, 7, 11, 23, 29, 37, 73, 77, 161, 203, 253, 259, 319, 407, 511, 667, 803, 851, 1073, 1679, 1771, 2117, 2233, 2701, 2849, 4669, 5621, 5957, 7337, 7511, 9361, 11753, 11803, 14819, 18469, 18907, 23287, 24679, 29711, 48691, 51359, 62123, 65527, 78329, 82621, 129283, 163009, 172753, 207977, 271469, 340837, 434861, 535601, 548303, 683353, 861619, 1801567, 1900283, 3749207, 4783471, 6031333, 12610969, 19817237, 138720659]

約数ペア:

[(1, 138720659), (7, 19817237), (11, 12610969), (23, 6031333), (29, 4783471), (37, 3749207), (73, 1900283), (77, 1801567), (161, 861619), (203, 683353), (253, 548303), (259, 535601), (319, 434861), (407, 340837), (511, 271469), (667, 207977), (803, 172753), (851, 163009), (1073, 129283), (1679, 82621), (1771, 78329), (2117, 65527), (2233, 62123), (2701, 51359), (2849, 48691), (4669, 29711), (5621, 24679), (5957, 23287), (7337, 18907), (7511, 18469), (9361, 14819), (11753, 11803)]