81978768

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^3\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 120

約数和(自身を含む): 245088480

約数和(自身を除く): 163109712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 83, 114, 144, 152, 166, 171, 228, 249, 304, 332, 342, 361, 456, 498, 664, 684, 722, 747, 912, 996, 1083, 1328, 1368, 1444, 1494, 1577, 1992, 2166, 2736, 2888, 2988, 3154, 3249, 3984, 4332, 4731, 5776, 5976, 6308, 6498, 6859, 8664, 9462, 11952, 12616, 12996, 13718, 14193, 17328, 18924, 20577, 25232, 25992, 27436, 28386, 29963, 37848, 41154, 51984, 54872, 56772, 59926, 61731, 75696, 82308, 89889, 109744, 113544, 119852, 123462, 164616, 179778, 227088, 239704, 246924, 269667, 329232, 359556, 479408, 493848, 539334, 569297, 719112, 987696, 1078668, 1138594, 1438224, 1707891, 2157336, 2277188, 3415782, 4314672, 4554376, 5123673, 6831564, 9108752, 10247346, 13663128, 20494692, 27326256, 40989384, 81978768]

約数ペア:

[(1, 81978768), (2, 40989384), (3, 27326256), (4, 20494692), (6, 13663128), (8, 10247346), (9, 9108752), (12, 6831564), (16, 5123673), (18, 4554376), (19, 4314672), (24, 3415782), (36, 2277188), (38, 2157336), (48, 1707891), (57, 1438224), (72, 1138594), (76, 1078668), (83, 987696), (114, 719112), (144, 569297), (152, 539334), (166, 493848), (171, 479408), (228, 359556), (249, 329232), (304, 269667), (332, 246924), (342, 239704), (361, 227088), (456, 179778), (498, 164616), (664, 123462), (684, 119852), (722, 113544), (747, 109744), (912, 89889), (996, 82308), (1083, 75696), (1328, 61731), (1368, 59926), (1444, 56772), (1494, 54872), (1577, 51984), (1992, 41154), (2166, 37848), (2736, 29963), (2888, 28386), (2988, 27436), (3154, 25992), (3249, 25232), (3984, 20577), (4332, 18924), (4731, 17328), (5776, 14193), (5976, 13718), (6308, 12996), (6498, 12616), (6859, 11952), (8664, 9462)]