2557435055

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{947}}^1$

素因数の和:1140

約数の個数: 64

約数和(自身を含む): 3844177920

約数和(自身を除く): 1286742865

約数列:

[1, 5, 7, 19, 31, 35, 95, 131, 133, 155, 217, 589, 655, 665, 917, 947, 1085, 2489, 2945, 4061, 4123, 4585, 4735, 6629, 12445, 17423, 17993, 20305, 20615, 28427, 29357, 33145, 77159, 87115, 89965, 124057, 125951, 142135, 146785, 205499, 385795, 540113, 557783, 620285, 629755, 868399, 1027495, 2357083, 2700565, 2788915, 3845767, 3904481, 4341995, 11785415, 16499581, 19228835, 19522405, 26920369, 73069573, 82497905, 134601845, 365347865, 511487011, 2557435055]

約数ペア:

[(1, 2557435055), (5, 511487011), (7, 365347865), (19, 134601845), (31, 82497905), (35, 73069573), (95, 26920369), (131, 19522405), (133, 19228835), (155, 16499581), (217, 11785415), (589, 4341995), (655, 3904481), (665, 3845767), (917, 2788915), (947, 2700565), (1085, 2357083), (2489, 1027495), (2945, 868399), (4061, 629755), (4123, 620285), (4585, 557783), (4735, 540113), (6629, 385795), (12445, 205499), (17423, 146785), (17993, 142135), (20305, 125951), (20615, 124057), (28427, 89965), (29357, 87115), (33145, 77159)]