20797838320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{593}}^1$

素因数の和:1032

約数の個数: 240

約数和(自身を含む): 58945423680

約数和(自身を除く): 38147585360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 322, 368, 389, 392, 460, 490, 560, 593, 644, 778, 784, 805, 920, 980, 1127, 1186, 1288, 1556, 1610, 1840, 1945, 1960, 2254, 2372, 2576, 2723, 2965, 3112, 3220, 3890, 3920, 4151, 4508, 4744, 5446, 5635, 5930, 6224, 6440, 7780, 8302, 8947, 9016, 9488, 10892, 11270, 11860, 12880, 13615, 13639, 15560, 16604, 17894, 18032, 19061, 20755, 21784, 22540, 23720, 27230, 27278, 29057, 31120, 33208, 35788, 38122, 41510, 43568, 44735, 45080, 47440, 54460, 54556, 58114, 62629, 66416, 68195, 71576, 76244, 83020, 89470, 90160, 95305, 95473, 108920, 109112, 116228, 125258, 136390, 143152, 145285, 152488, 166040, 178940, 190610, 190946, 217840, 218224, 230677, 232456, 250516, 272780, 290570, 304976, 313145, 332080, 357880, 381220, 381892, 438403, 461354, 464912, 477365, 501032, 545560, 581140, 626290, 668311, 715760, 762440, 763784, 876806, 922708, 954730, 1002064, 1091120, 1153385, 1162280, 1252580, 1336622, 1524880, 1527568, 1614739, 1753612, 1845416, 1909460, 2192015, 2306770, 2324560, 2505160, 2673244, 3229478, 3341555, 3507224, 3690832, 3818920, 4384030, 4613540, 5010320, 5305571, 5346488, 6458956, 6683110, 7014448, 7637840, 8073695, 8768060, 9227080, 10611142, 10692976, 11303173, 12917912, 13366220, 16147390, 17536120, 18454160, 21222284, 22606346, 25835824, 26527855, 26732440, 32294780, 35072240, 37138997, 42444568, 45212692, 53055710, 53464880, 56515865, 64589560, 74277994, 84889136, 90425384, 106111420, 113031730, 129179120, 148555988, 180850768, 185694985, 212222840, 226063460, 259972979, 297111976, 371389970, 424445680, 452126920, 519945958, 594223952, 742779940, 904253840, 1039891916, 1299864895, 1485559880, 2079783832, 2599729790, 2971119760, 4159567664, 5199459580, 10398919160, 20797838320]

約数ペア:

[(1, 20797838320), (2, 10398919160), (4, 5199459580), (5, 4159567664), (7, 2971119760), (8, 2599729790), (10, 2079783832), (14, 1485559880), (16, 1299864895), (20, 1039891916), (23, 904253840), (28, 742779940), (35, 594223952), (40, 519945958), (46, 452126920), (49, 424445680), (56, 371389970), (70, 297111976), (80, 259972979), (92, 226063460), (98, 212222840), (112, 185694985), (115, 180850768), (140, 148555988), (161, 129179120), (184, 113031730), (196, 106111420), (230, 90425384), (245, 84889136), (280, 74277994), (322, 64589560), (368, 56515865), (389, 53464880), (392, 53055710), (460, 45212692), (490, 42444568), (560, 37138997), (593, 35072240), (644, 32294780), (778, 26732440), (784, 26527855), (805, 25835824), (920, 22606346), (980, 21222284), (1127, 18454160), (1186, 17536120), (1288, 16147390), (1556, 13366220), (1610, 12917912), (1840, 11303173), (1945, 10692976), (1960, 10611142), (2254, 9227080), (2372, 8768060), (2576, 8073695), (2723, 7637840), (2965, 7014448), (3112, 6683110), (3220, 6458956), (3890, 5346488), (3920, 5305571), (4151, 5010320), (4508, 4613540), (4744, 4384030), (5446, 3818920), (5635, 3690832), (5930, 3507224), (6224, 3341555), (6440, 3229478), (7780, 2673244), (8302, 2505160), (8947, 2324560), (9016, 2306770), (9488, 2192015), (10892, 1909460), (11270, 1845416), (11860, 1753612), (12880, 1614739), (13615, 1527568), (13639, 1524880), (15560, 1336622), (16604, 1252580), (17894, 1162280), (18032, 1153385), (19061, 1091120), (20755, 1002064), (21784, 954730), (22540, 922708), (23720, 876806), (27230, 763784), (27278, 762440), (29057, 715760), (31120, 668311), (33208, 626290), (35788, 581140), (38122, 545560), (41510, 501032), (43568, 477365), (44735, 464912), (45080, 461354), (47440, 438403), (54460, 381892), (54556, 381220), (58114, 357880), (62629, 332080), (66416, 313145), (68195, 304976), (71576, 290570), (76244, 272780), (83020, 250516), (89470, 232456), (90160, 230677), (95305, 218224), (95473, 217840), (108920, 190946), (109112, 190610), (116228, 178940), (125258, 166040), (136390, 152488), (143152, 145285)]