20657596480

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{863}}^1$

素因数の和:1057

約数の個数: 224

約数和(自身を含む): 53933506560

約数和(自身を除く): 33275910080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 127, 152, 155, 160, 190, 248, 254, 304, 310, 320, 380, 496, 508, 589, 608, 620, 635, 760, 863, 992, 1016, 1178, 1216, 1240, 1270, 1520, 1726, 1984, 2032, 2356, 2413, 2480, 2540, 2945, 3040, 3452, 3937, 4064, 4315, 4712, 4826, 4960, 5080, 5890, 6080, 6904, 7874, 8128, 8630, 9424, 9652, 9920, 10160, 11780, 12065, 13808, 15748, 16397, 17260, 18848, 19304, 19685, 20320, 23560, 24130, 26753, 27616, 31496, 32794, 34520, 37696, 38608, 39370, 40640, 47120, 48260, 53506, 55232, 62992, 65588, 69040, 74803, 77216, 78740, 81985, 94240, 96520, 107012, 109601, 125984, 131176, 133765, 138080, 149606, 154432, 157480, 163970, 188480, 193040, 214024, 219202, 251968, 262352, 267530, 276160, 299212, 314960, 327940, 374015, 386080, 428048, 438404, 508307, 524704, 535060, 548005, 598424, 629920, 655880, 748030, 772160, 856096, 876808, 1016614, 1049408, 1070120, 1096010, 1196848, 1259840, 1311760, 1496060, 1712192, 1753616, 2033228, 2082419, 2140240, 2192020, 2393696, 2541535, 2623520, 2992120, 3397631, 3507232, 4066456, 4164838, 4280480, 4384040, 4787392, 5083070, 5247040, 5984240, 6795262, 7014464, 8132912, 8329676, 8560960, 8768080, 10166140, 10412095, 11968480, 13590524, 16265824, 16659352, 16988155, 17536160, 20332280, 20824190, 23936960, 27181048, 32531648, 33318704, 33976310, 35072320, 40664560, 41648380, 54362096, 64554989, 66637408, 67952620, 81329120, 83296760, 108724192, 129109978, 133274816, 135905240, 162658240, 166593520, 217448384, 258219956, 271810480, 322774945, 333187040, 516439912, 543620960, 645549890, 666374080, 1032879824, 1087241920, 1291099780, 2065759648, 2582199560, 4131519296, 5164399120, 10328798240, 20657596480]

約数ペア:

[(1, 20657596480), (2, 10328798240), (4, 5164399120), (5, 4131519296), (8, 2582199560), (10, 2065759648), (16, 1291099780), (19, 1087241920), (20, 1032879824), (31, 666374080), (32, 645549890), (38, 543620960), (40, 516439912), (62, 333187040), (64, 322774945), (76, 271810480), (80, 258219956), (95, 217448384), (124, 166593520), (127, 162658240), (152, 135905240), (155, 133274816), (160, 129109978), (190, 108724192), (248, 83296760), (254, 81329120), (304, 67952620), (310, 66637408), (320, 64554989), (380, 54362096), (496, 41648380), (508, 40664560), (589, 35072320), (608, 33976310), (620, 33318704), (635, 32531648), (760, 27181048), (863, 23936960), (992, 20824190), (1016, 20332280), (1178, 17536160), (1216, 16988155), (1240, 16659352), (1270, 16265824), (1520, 13590524), (1726, 11968480), (1984, 10412095), (2032, 10166140), (2356, 8768080), (2413, 8560960), (2480, 8329676), (2540, 8132912), (2945, 7014464), (3040, 6795262), (3452, 5984240), (3937, 5247040), (4064, 5083070), (4315, 4787392), (4712, 4384040), (4826, 4280480), (4960, 4164838), (5080, 4066456), (5890, 3507232), (6080, 3397631), (6904, 2992120), (7874, 2623520), (8128, 2541535), (8630, 2393696), (9424, 2192020), (9652, 2140240), (9920, 2082419), (10160, 2033228), (11780, 1753616), (12065, 1712192), (13808, 1496060), (15748, 1311760), (16397, 1259840), (17260, 1196848), (18848, 1096010), (19304, 1070120), (19685, 1049408), (20320, 1016614), (23560, 876808), (24130, 856096), (26753, 772160), (27616, 748030), (31496, 655880), (32794, 629920), (34520, 598424), (37696, 548005), (38608, 535060), (39370, 524704), (40640, 508307), (47120, 438404), (48260, 428048), (53506, 386080), (55232, 374015), (62992, 327940), (65588, 314960), (69040, 299212), (74803, 276160), (77216, 267530), (78740, 262352), (81985, 251968), (94240, 219202), (96520, 214024), (107012, 193040), (109601, 188480), (125984, 163970), (131176, 157480), (133765, 154432), (138080, 149606)]