640719072

素因数分解:

$2^5\times 3^5\times 7^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 288

約数和(自身を含む): 2201472000

約数和(自身を除く): 1560752928

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 72, 79, 81, 84, 96, 108, 112, 126, 144, 149, 158, 162, 168, 189, 216, 224, 237, 243, 252, 288, 298, 316, 324, 336, 378, 432, 447, 474, 486, 504, 553, 567, 596, 632, 648, 672, 711, 756, 864, 894, 948, 972, 1008, 1043, 1106, 1134, 1192, 1264, 1296, 1341, 1422, 1512, 1659, 1701, 1788, 1896, 1944, 2016, 2086, 2133, 2212, 2268, 2384, 2528, 2592, 2682, 2844, 3024, 3129, 3318, 3402, 3576, 3792, 3888, 4023, 4172, 4266, 4424, 4536, 4768, 4977, 5364, 5688, 6048, 6258, 6399, 6636, 6804, 7152, 7584, 7776, 8046, 8344, 8532, 8848, 9072, 9387, 9954, 10728, 11376, 11771, 12069, 12516, 12798, 13272, 13608, 14304, 14931, 16092, 16688, 17064, 17696, 18144, 18774, 19197, 19908, 21456, 22752, 23542, 24138, 25032, 25596, 26544, 27216, 28161, 29862, 32184, 33376, 34128, 35313, 36207, 37548, 38394, 39816, 42912, 44793, 47084, 48276, 50064, 51192, 53088, 54432, 56322, 59724, 64368, 68256, 70626, 72414, 75096, 76788, 79632, 82397, 84483, 89586, 94168, 96552, 100128, 102384, 105939, 112644, 119448, 128736, 134379, 141252, 144828, 150192, 153576, 159264, 164794, 168966, 179172, 188336, 193104, 204768, 211878, 225288, 238896, 247191, 253449, 268758, 282504, 289656, 300384, 307152, 317817, 329588, 337932, 358344, 376672, 386208, 423756, 450576, 477792, 494382, 506898, 537516, 565008, 579312, 614304, 635634, 659176, 675864, 716688, 741573, 847512, 901152, 953451, 988764, 1013796, 1075032, 1130016, 1158624, 1271268, 1318352, 1351728, 1433376, 1483146, 1695024, 1906902, 1977528, 2027592, 2150064, 2224719, 2542536, 2636704, 2703456, 2860353, 2966292, 3390048, 3813804, 3955056, 4055184, 4300128, 4449438, 5085072, 5720706, 5932584, 6674157, 7627608, 7910112, 8110368, 8898876, 10170144, 11441412, 11865168, 13348314, 15255216, 17797752, 20022471, 22882824, 23730336, 26696628, 30510432, 35595504, 40044942, 45765648, 53393256, 71191008, 80089884, 91531296, 106786512, 160179768, 213573024, 320359536, 640719072]

約数ペア:

[(1, 640719072), (2, 320359536), (3, 213573024), (4, 160179768), (6, 106786512), (7, 91531296), (8, 80089884), (9, 71191008), (12, 53393256), (14, 45765648), (16, 40044942), (18, 35595504), (21, 30510432), (24, 26696628), (27, 23730336), (28, 22882824), (32, 20022471), (36, 17797752), (42, 15255216), (48, 13348314), (54, 11865168), (56, 11441412), (63, 10170144), (72, 8898876), (79, 8110368), (81, 7910112), (84, 7627608), (96, 6674157), (108, 5932584), (112, 5720706), (126, 5085072), (144, 4449438), (149, 4300128), (158, 4055184), (162, 3955056), (168, 3813804), (189, 3390048), (216, 2966292), (224, 2860353), (237, 2703456), (243, 2636704), (252, 2542536), (288, 2224719), (298, 2150064), (316, 2027592), (324, 1977528), (336, 1906902), (378, 1695024), (432, 1483146), (447, 1433376), (474, 1351728), (486, 1318352), (504, 1271268), (553, 1158624), (567, 1130016), (596, 1075032), (632, 1013796), (648, 988764), (672, 953451), (711, 901152), (756, 847512), (864, 741573), (894, 716688), (948, 675864), (972, 659176), (1008, 635634), (1043, 614304), (1106, 579312), (1134, 565008), (1192, 537516), (1264, 506898), (1296, 494382), (1341, 477792), (1422, 450576), (1512, 423756), (1659, 386208), (1701, 376672), (1788, 358344), (1896, 337932), (1944, 329588), (2016, 317817), (2086, 307152), (2133, 300384), (2212, 289656), (2268, 282504), (2384, 268758), (2528, 253449), (2592, 247191), (2682, 238896), (2844, 225288), (3024, 211878), (3129, 204768), (3318, 193104), (3402, 188336), (3576, 179172), (3792, 168966), (3888, 164794), (4023, 159264), (4172, 153576), (4266, 150192), (4424, 144828), (4536, 141252), (4768, 134379), (4977, 128736), (5364, 119448), (5688, 112644), (6048, 105939), (6258, 102384), (6399, 100128), (6636, 96552), (6804, 94168), (7152, 89586), (7584, 84483), (7776, 82397), (8046, 79632), (8344, 76788), (8532, 75096), (8848, 72414), (9072, 70626), (9387, 68256), (9954, 64368), (10728, 59724), (11376, 56322), (11771, 54432), (12069, 53088), (12516, 51192), (12798, 50064), (13272, 48276), (13608, 47084), (14304, 44793), (14931, 42912), (16092, 39816), (16688, 38394), (17064, 37548), (17696, 36207), (18144, 35313), (18774, 34128), (19197, 33376), (19908, 32184), (21456, 29862), (22752, 28161), (23542, 27216), (24138, 26544), (25032, 25596)]