499836280

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1\times {\mathrm{463}}^1$

素因数の和:808

約数の個数: 64

約数和(自身を含む): 1141050240

約数和(自身を除く): 641213960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 197, 274, 394, 463, 548, 685, 788, 926, 985, 1096, 1370, 1576, 1852, 1970, 2315, 2740, 3704, 3940, 4630, 5480, 7880, 9260, 18520, 26989, 53978, 63431, 91211, 107956, 126862, 134945, 182422, 215912, 253724, 269890, 317155, 364844, 456055, 507448, 539780, 634310, 729688, 912110, 1079560, 1268620, 1824220, 2537240, 3648440, 12495907, 24991814, 49983628, 62479535, 99967256, 124959070, 249918140, 499836280]

約数ペア:

[(1, 499836280), (2, 249918140), (4, 124959070), (5, 99967256), (8, 62479535), (10, 49983628), (20, 24991814), (40, 12495907), (137, 3648440), (197, 2537240), (274, 1824220), (394, 1268620), (463, 1079560), (548, 912110), (685, 729688), (788, 634310), (926, 539780), (985, 507448), (1096, 456055), (1370, 364844), (1576, 317155), (1852, 269890), (1970, 253724), (2315, 215912), (2740, 182422), (3704, 134945), (3940, 126862), (4630, 107956), (5480, 91211), (7880, 63431), (9260, 53978), (18520, 26989)]