648711280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{3701}}^1$

素因数の和:4034

約数の個数: 80

約数和(自身を含む): 1729692864

約数和(自身を除く): 1080981584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 313, 560, 626, 1252, 1565, 2191, 2504, 3130, 3701, 4382, 5008, 6260, 7402, 8764, 10955, 12520, 14804, 17528, 18505, 21910, 25040, 25907, 29608, 35056, 37010, 43820, 51814, 59216, 74020, 87640, 103628, 129535, 148040, 175280, 207256, 259070, 296080, 414512, 518140, 1036280, 1158413, 2072560, 2316826, 4633652, 5792065, 8108891, 9267304, 11584130, 16217782, 18534608, 23168260, 32435564, 40544455, 46336520, 64871128, 81088910, 92673040, 129742256, 162177820, 324355640, 648711280]

約数ペア:

[(1, 648711280), (2, 324355640), (4, 162177820), (5, 129742256), (7, 92673040), (8, 81088910), (10, 64871128), (14, 46336520), (16, 40544455), (20, 32435564), (28, 23168260), (35, 18534608), (40, 16217782), (56, 11584130), (70, 9267304), (80, 8108891), (112, 5792065), (140, 4633652), (280, 2316826), (313, 2072560), (560, 1158413), (626, 1036280), (1252, 518140), (1565, 414512), (2191, 296080), (2504, 259070), (3130, 207256), (3701, 175280), (4382, 148040), (5008, 129535), (6260, 103628), (7402, 87640), (8764, 74020), (10955, 59216), (12520, 51814), (14804, 43820), (17528, 37010), (18505, 35056), (21910, 29608), (25040, 25907)]