20979352520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{607}}^1$

素因数の和:832

約数の個数: 256

約数和(自身を含む): 58719375360

約数和(自身を除く): 37740022840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 53, 56, 68, 70, 85, 106, 119, 136, 137, 140, 170, 212, 238, 265, 274, 280, 340, 371, 424, 476, 530, 548, 595, 607, 680, 685, 742, 901, 952, 959, 1060, 1096, 1190, 1214, 1370, 1484, 1802, 1855, 1918, 2120, 2329, 2380, 2428, 2740, 2968, 3035, 3604, 3710, 3836, 4249, 4505, 4658, 4760, 4795, 4856, 5480, 6070, 6307, 7208, 7261, 7420, 7672, 8498, 9010, 9316, 9590, 10319, 11645, 12140, 12614, 14522, 14840, 16303, 16996, 18020, 18632, 19180, 20638, 21245, 23290, 24280, 25228, 29044, 31535, 32171, 32606, 33992, 36040, 36305, 38360, 41276, 42490, 46580, 50456, 50827, 51595, 58088, 63070, 64342, 65212, 72233, 72610, 81515, 82552, 83159, 84980, 93160, 101654, 103190, 123437, 126140, 128684, 130424, 144466, 145220, 160855, 163030, 166318, 169960, 203308, 206380, 225197, 246874, 252280, 254135, 257368, 288932, 290440, 321710, 326060, 332636, 361165, 406616, 412760, 415795, 450394, 493748, 508270, 546907, 577864, 582113, 617185, 643420, 652120, 665272, 722330, 831590, 864059, 900788, 987496, 1016540, 1093814, 1125985, 1164226, 1234370, 1286840, 1413703, 1444660, 1663180, 1728118, 1801576, 2033080, 2187628, 2251970, 2328452, 2468740, 2734535, 2827406, 2889320, 2910565, 3326360, 3456236, 3828349, 4320295, 4375256, 4407427, 4503940, 4656904, 4937480, 5469070, 5654812, 5821130, 6912472, 7068515, 7656698, 8640590, 8814854, 9007880, 9895921, 10938140, 11309624, 11642260, 14137030, 15313396, 17281180, 17629708, 19141745, 19791842, 21876280, 22037135, 23284520, 28274060, 30626792, 30851989, 34562360, 35259416, 38283490, 39583684, 44074270, 49479605, 56548120, 61703978, 74926259, 76566980, 79167368, 88148540, 98959210, 123407956, 149852518, 153133960, 154259945, 176297080, 197918420, 246815912, 299705036, 308519890, 374631295, 395836840, 524483813, 599410072, 617039780, 749262590, 1048967626, 1234079560, 1498525180, 2097935252, 2622419065, 2997050360, 4195870504, 5244838130, 10489676260, 20979352520]

約数ペア:

[(1, 20979352520), (2, 10489676260), (4, 5244838130), (5, 4195870504), (7, 2997050360), (8, 2622419065), (10, 2097935252), (14, 1498525180), (17, 1234079560), (20, 1048967626), (28, 749262590), (34, 617039780), (35, 599410072), (40, 524483813), (53, 395836840), (56, 374631295), (68, 308519890), (70, 299705036), (85, 246815912), (106, 197918420), (119, 176297080), (136, 154259945), (137, 153133960), (140, 149852518), (170, 123407956), (212, 98959210), (238, 88148540), (265, 79167368), (274, 76566980), (280, 74926259), (340, 61703978), (371, 56548120), (424, 49479605), (476, 44074270), (530, 39583684), (548, 38283490), (595, 35259416), (607, 34562360), (680, 30851989), (685, 30626792), (742, 28274060), (901, 23284520), (952, 22037135), (959, 21876280), (1060, 19791842), (1096, 19141745), (1190, 17629708), (1214, 17281180), (1370, 15313396), (1484, 14137030), (1802, 11642260), (1855, 11309624), (1918, 10938140), (2120, 9895921), (2329, 9007880), (2380, 8814854), (2428, 8640590), (2740, 7656698), (2968, 7068515), (3035, 6912472), (3604, 5821130), (3710, 5654812), (3836, 5469070), (4249, 4937480), (4505, 4656904), (4658, 4503940), (4760, 4407427), (4795, 4375256), (4856, 4320295), (5480, 3828349), (6070, 3456236), (6307, 3326360), (7208, 2910565), (7261, 2889320), (7420, 2827406), (7672, 2734535), (8498, 2468740), (9010, 2328452), (9316, 2251970), (9590, 2187628), (10319, 2033080), (11645, 1801576), (12140, 1728118), (12614, 1663180), (14522, 1444660), (14840, 1413703), (16303, 1286840), (16996, 1234370), (18020, 1164226), (18632, 1125985), (19180, 1093814), (20638, 1016540), (21245, 987496), (23290, 900788), (24280, 864059), (25228, 831590), (29044, 722330), (31535, 665272), (32171, 652120), (32606, 643420), (33992, 617185), (36040, 582113), (36305, 577864), (38360, 546907), (41276, 508270), (42490, 493748), (46580, 450394), (50456, 415795), (50827, 412760), (51595, 406616), (58088, 361165), (63070, 332636), (64342, 326060), (65212, 321710), (72233, 290440), (72610, 288932), (81515, 257368), (82552, 254135), (83159, 252280), (84980, 246874), (93160, 225197), (101654, 206380), (103190, 203308), (123437, 169960), (126140, 166318), (128684, 163030), (130424, 160855), (144466, 145220)]