278502627

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 440294400

約数和(自身を除く): 161791773

約数列:

[1, 3, 13, 19, 39, 41, 57, 89, 103, 123, 247, 267, 309, 533, 741, 779, 1157, 1339, 1599, 1691, 1957, 2337, 3471, 3649, 4017, 4223, 5073, 5871, 9167, 10127, 10947, 12669, 21983, 25441, 27501, 30381, 47437, 54899, 65949, 69331, 76323, 80237, 119171, 142311, 164697, 174173, 207993, 240711, 357513, 375847, 522519, 901303, 1043081, 1127541, 2264249, 2703909, 3129243, 4886011, 6792747, 7141093, 14658033, 21423279, 92834209, 278502627]

約数ペア:

[(1, 278502627), (3, 92834209), (13, 21423279), (19, 14658033), (39, 7141093), (41, 6792747), (57, 4886011), (89, 3129243), (103, 2703909), (123, 2264249), (247, 1127541), (267, 1043081), (309, 901303), (533, 522519), (741, 375847), (779, 357513), (1157, 240711), (1339, 207993), (1599, 174173), (1691, 164697), (1957, 142311), (2337, 119171), (3471, 80237), (3649, 76323), (4017, 69331), (4223, 65949), (5073, 54899), (5871, 47437), (9167, 30381), (10127, 27501), (10947, 25441), (12669, 21983)]