249249520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{541}}^1$

素因数の和:1010

約数の個数: 80

約数和(自身を含む): 626647392

約数和(自身を除く): 377397872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 443, 520, 541, 886, 1040, 1082, 1772, 2164, 2215, 2705, 3544, 4328, 4430, 5410, 5759, 7033, 7088, 8656, 8860, 10820, 11518, 14066, 17720, 21640, 23036, 28132, 28795, 35165, 35440, 43280, 46072, 56264, 57590, 70330, 92144, 112528, 115180, 140660, 230360, 239663, 281320, 460720, 479326, 562640, 958652, 1198315, 1917304, 2396630, 3115619, 3834608, 4793260, 6231238, 9586520, 12462476, 15578095, 19173040, 24924952, 31156190, 49849904, 62312380, 124624760, 249249520]

約数ペア:

[(1, 249249520), (2, 124624760), (4, 62312380), (5, 49849904), (8, 31156190), (10, 24924952), (13, 19173040), (16, 15578095), (20, 12462476), (26, 9586520), (40, 6231238), (52, 4793260), (65, 3834608), (80, 3115619), (104, 2396630), (130, 1917304), (208, 1198315), (260, 958652), (443, 562640), (520, 479326), (541, 460720), (886, 281320), (1040, 239663), (1082, 230360), (1772, 140660), (2164, 115180), (2215, 112528), (2705, 92144), (3544, 70330), (4328, 57590), (4430, 56264), (5410, 46072), (5759, 43280), (7033, 35440), (7088, 35165), (8656, 28795), (8860, 28132), (10820, 23036), (11518, 21640), (14066, 17720)]