639647520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{137}}^2$

素因数の和:363

約数の個数: 144

約数和(自身を含む): 2058291648

約数和(自身を除く): 1418644128

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 71, 80, 96, 120, 137, 142, 160, 213, 240, 274, 284, 355, 411, 426, 480, 548, 568, 685, 710, 822, 852, 1065, 1096, 1136, 1370, 1420, 1644, 1704, 2055, 2130, 2192, 2272, 2740, 2840, 3288, 3408, 4110, 4260, 4384, 5480, 5680, 6576, 6816, 8220, 8520, 9727, 10960, 11360, 13152, 16440, 17040, 18769, 19454, 21920, 29181, 32880, 34080, 37538, 38908, 48635, 56307, 58362, 65760, 75076, 77816, 93845, 97270, 112614, 116724, 145905, 150152, 155632, 187690, 194540, 225228, 233448, 281535, 291810, 300304, 311264, 375380, 389080, 450456, 466896, 563070, 583620, 600608, 750760, 778160, 900912, 933792, 1126140, 1167240, 1332599, 1501520, 1556320, 1801824, 2252280, 2334480, 2665198, 3003040, 3997797, 4504560, 4668960, 5330396, 6662995, 7995594, 9009120, 10660792, 13325990, 15991188, 19988985, 21321584, 26651980, 31982376, 39977970, 42643168, 53303960, 63964752, 79955940, 106607920, 127929504, 159911880, 213215840, 319823760, 639647520]

約数ペア:

[(1, 639647520), (2, 319823760), (3, 213215840), (4, 159911880), (5, 127929504), (6, 106607920), (8, 79955940), (10, 63964752), (12, 53303960), (15, 42643168), (16, 39977970), (20, 31982376), (24, 26651980), (30, 21321584), (32, 19988985), (40, 15991188), (48, 13325990), (60, 10660792), (71, 9009120), (80, 7995594), (96, 6662995), (120, 5330396), (137, 4668960), (142, 4504560), (160, 3997797), (213, 3003040), (240, 2665198), (274, 2334480), (284, 2252280), (355, 1801824), (411, 1556320), (426, 1501520), (480, 1332599), (548, 1167240), (568, 1126140), (685, 933792), (710, 900912), (822, 778160), (852, 750760), (1065, 600608), (1096, 583620), (1136, 563070), (1370, 466896), (1420, 450456), (1644, 389080), (1704, 375380), (2055, 311264), (2130, 300304), (2192, 291810), (2272, 281535), (2740, 233448), (2840, 225228), (3288, 194540), (3408, 187690), (4110, 155632), (4260, 150152), (4384, 145905), (5480, 116724), (5680, 112614), (6576, 97270), (6816, 93845), (8220, 77816), (8520, 75076), (9727, 65760), (10960, 58362), (11360, 56307), (13152, 48635), (16440, 38908), (17040, 37538), (18769, 34080), (19454, 32880), (21920, 29181)]