20163871440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{499}}^1\times {\mathrm{56123}}^1$

素因数の和:56641

約数の個数: 120

約数和(自身を含む): 67853916000

約数和(自身を除く): 47690044560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 499, 720, 998, 1497, 1996, 2495, 2994, 3992, 4491, 4990, 5988, 7485, 7984, 8982, 9980, 11976, 14970, 17964, 19960, 22455, 23952, 29940, 35928, 39920, 44910, 56123, 59880, 71856, 89820, 112246, 119760, 168369, 179640, 224492, 280615, 336738, 359280, 448984, 505107, 561230, 673476, 841845, 897968, 1010214, 1122460, 1346952, 1683690, 2020428, 2244920, 2525535, 2693904, 3367380, 4040856, 4489840, 5051070, 6734760, 8081712, 10102140, 13469520, 20204280, 28005377, 40408560, 56010754, 84016131, 112021508, 140026885, 168032262, 224043016, 252048393, 280053770, 336064524, 420080655, 448086032, 504096786, 560107540, 672129048, 840161310, 1008193572, 1120215080, 1260241965, 1344258096, 1680322620, 2016387144, 2240430160, 2520483930, 3360645240, 4032774288, 5040967860, 6721290480, 10081935720, 20163871440]

約数ペア:

[(1, 20163871440), (2, 10081935720), (3, 6721290480), (4, 5040967860), (5, 4032774288), (6, 3360645240), (8, 2520483930), (9, 2240430160), (10, 2016387144), (12, 1680322620), (15, 1344258096), (16, 1260241965), (18, 1120215080), (20, 1008193572), (24, 840161310), (30, 672129048), (36, 560107540), (40, 504096786), (45, 448086032), (48, 420080655), (60, 336064524), (72, 280053770), (80, 252048393), (90, 224043016), (120, 168032262), (144, 140026885), (180, 112021508), (240, 84016131), (360, 56010754), (499, 40408560), (720, 28005377), (998, 20204280), (1497, 13469520), (1996, 10102140), (2495, 8081712), (2994, 6734760), (3992, 5051070), (4491, 4489840), (4990, 4040856), (5988, 3367380), (7485, 2693904), (7984, 2525535), (8982, 2244920), (9980, 2020428), (11976, 1683690), (14970, 1346952), (17964, 1122460), (19960, 1010214), (22455, 897968), (23952, 841845), (29940, 673476), (35928, 561230), (39920, 505107), (44910, 448984), (56123, 359280), (59880, 336738), (71856, 280615), (89820, 224492), (112246, 179640), (119760, 168369)]