20178233920

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{607}}^1$

素因数の和:829

約数の個数: 224

約数和(自身を含む): 53082602496

約数和(自身を除く): 32904368576

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 61, 64, 65, 80, 104, 122, 130, 131, 160, 208, 244, 260, 262, 305, 320, 416, 488, 520, 524, 607, 610, 655, 793, 832, 976, 1040, 1048, 1214, 1220, 1310, 1586, 1703, 1952, 2080, 2096, 2428, 2440, 2620, 3035, 3172, 3406, 3904, 3965, 4160, 4192, 4856, 4880, 5240, 6070, 6344, 6812, 7891, 7930, 7991, 8384, 8515, 9712, 9760, 10480, 12140, 12688, 13624, 15782, 15860, 15982, 17030, 19424, 19520, 20960, 24280, 25376, 27248, 31564, 31720, 31964, 34060, 37027, 38848, 39455, 39955, 41920, 48560, 50752, 54496, 63128, 63440, 63928, 68120, 74054, 78910, 79517, 79910, 97120, 103883, 108992, 126256, 126880, 127856, 136240, 148108, 157820, 159034, 159820, 185135, 194240, 207766, 252512, 253760, 255712, 272480, 296216, 315640, 318068, 319640, 370270, 397585, 415532, 481351, 505024, 511424, 519415, 544960, 592432, 631280, 636136, 639280, 740540, 795170, 831064, 962702, 1033721, 1038830, 1184864, 1262560, 1272272, 1278560, 1481080, 1590340, 1662128, 1925404, 2067442, 2077660, 2369728, 2406755, 2525120, 2544544, 2557120, 2962160, 3180680, 3324256, 3850808, 4134884, 4155320, 4813510, 4850537, 5089088, 5168605, 5924320, 6361360, 6648512, 7701616, 8269768, 8310640, 9627020, 9701074, 10337210, 11848640, 12722720, 15403232, 16539536, 16621280, 19254040, 19402148, 20674420, 24252685, 25445440, 30806464, 33079072, 33242560, 38508080, 38804296, 41348840, 48505370, 63056981, 66158144, 77016160, 77608592, 82697680, 97010740, 126113962, 154032320, 155217184, 165395360, 194021480, 252227924, 310434368, 315284905, 330790720, 388042960, 504455848, 630569810, 776085920, 1008911696, 1261139620, 1552171840, 2017823392, 2522279240, 4035646784, 5044558480, 10089116960, 20178233920]

約数ペア:

[(1, 20178233920), (2, 10089116960), (4, 5044558480), (5, 4035646784), (8, 2522279240), (10, 2017823392), (13, 1552171840), (16, 1261139620), (20, 1008911696), (26, 776085920), (32, 630569810), (40, 504455848), (52, 388042960), (61, 330790720), (64, 315284905), (65, 310434368), (80, 252227924), (104, 194021480), (122, 165395360), (130, 155217184), (131, 154032320), (160, 126113962), (208, 97010740), (244, 82697680), (260, 77608592), (262, 77016160), (305, 66158144), (320, 63056981), (416, 48505370), (488, 41348840), (520, 38804296), (524, 38508080), (607, 33242560), (610, 33079072), (655, 30806464), (793, 25445440), (832, 24252685), (976, 20674420), (1040, 19402148), (1048, 19254040), (1214, 16621280), (1220, 16539536), (1310, 15403232), (1586, 12722720), (1703, 11848640), (1952, 10337210), (2080, 9701074), (2096, 9627020), (2428, 8310640), (2440, 8269768), (2620, 7701616), (3035, 6648512), (3172, 6361360), (3406, 5924320), (3904, 5168605), (3965, 5089088), (4160, 4850537), (4192, 4813510), (4856, 4155320), (4880, 4134884), (5240, 3850808), (6070, 3324256), (6344, 3180680), (6812, 2962160), (7891, 2557120), (7930, 2544544), (7991, 2525120), (8384, 2406755), (8515, 2369728), (9712, 2077660), (9760, 2067442), (10480, 1925404), (12140, 1662128), (12688, 1590340), (13624, 1481080), (15782, 1278560), (15860, 1272272), (15982, 1262560), (17030, 1184864), (19424, 1038830), (19520, 1033721), (20960, 962702), (24280, 831064), (25376, 795170), (27248, 740540), (31564, 639280), (31720, 636136), (31964, 631280), (34060, 592432), (37027, 544960), (38848, 519415), (39455, 511424), (39955, 505024), (41920, 481351), (48560, 415532), (50752, 397585), (54496, 370270), (63128, 319640), (63440, 318068), (63928, 315640), (68120, 296216), (74054, 272480), (78910, 255712), (79517, 253760), (79910, 252512), (97120, 207766), (103883, 194240), (108992, 185135), (126256, 159820), (126880, 159034), (127856, 157820), (136240, 148108)]