20984698728

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{557}}^1\times {\mathrm{24917}}^1$

素因数の和:25496

約数の個数: 128

約数和(自身を含む): 66740371200

約数和(自身を除く): 45755672472

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 557, 756, 1114, 1512, 1671, 2228, 3342, 3899, 4456, 5013, 6684, 7798, 10026, 11697, 13368, 15039, 15596, 20052, 23394, 24917, 30078, 31192, 35091, 40104, 46788, 49834, 60156, 70182, 74751, 93576, 99668, 105273, 120312, 140364, 149502, 174419, 199336, 210546, 224253, 280728, 299004, 348838, 421092, 448506, 523257, 598008, 672759, 697676, 842184, 897012, 1046514, 1345518, 1395352, 1569771, 1794024, 2093028, 2691036, 3139542, 4186056, 4709313, 5382072, 6279084, 9418626, 12558168, 13878769, 18837252, 27757538, 37674504, 41636307, 55515076, 83272614, 97151383, 111030152, 124908921, 166545228, 194302766, 249817842, 291454149, 333090456, 374726763, 388605532, 499635684, 582908298, 749453526, 777211064, 874362447, 999271368, 1165816596, 1498907052, 1748724894, 2331633192, 2623087341, 2997814104, 3497449788, 5246174682, 6994899576, 10492349364, 20984698728]

約数ペア:

[(1, 20984698728), (2, 10492349364), (3, 6994899576), (4, 5246174682), (6, 3497449788), (7, 2997814104), (8, 2623087341), (9, 2331633192), (12, 1748724894), (14, 1498907052), (18, 1165816596), (21, 999271368), (24, 874362447), (27, 777211064), (28, 749453526), (36, 582908298), (42, 499635684), (54, 388605532), (56, 374726763), (63, 333090456), (72, 291454149), (84, 249817842), (108, 194302766), (126, 166545228), (168, 124908921), (189, 111030152), (216, 97151383), (252, 83272614), (378, 55515076), (504, 41636307), (557, 37674504), (756, 27757538), (1114, 18837252), (1512, 13878769), (1671, 12558168), (2228, 9418626), (3342, 6279084), (3899, 5382072), (4456, 4709313), (5013, 4186056), (6684, 3139542), (7798, 2691036), (10026, 2093028), (11697, 1794024), (13368, 1569771), (15039, 1395352), (15596, 1345518), (20052, 1046514), (23394, 897012), (24917, 842184), (30078, 697676), (31192, 672759), (35091, 598008), (40104, 523257), (46788, 448506), (49834, 421092), (60156, 348838), (70182, 299004), (74751, 280728), (93576, 224253), (99668, 210546), (105273, 199336), (120312, 174419), (140364, 149502)]