488991580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{45361}}^1$

素因数の和:45395

約数の個数: 72

約数和(自身を含む): 1303159536

約数和(自身を除く): 814167956

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 45361, 90722, 181444, 226805, 317527, 453610, 498971, 635054, 907220, 997942, 1270108, 1587635, 1995884, 2222689, 2494855, 3175270, 3492797, 4445378, 4989710, 6350540, 6985594, 8890756, 9979420, 11113445, 13971188, 17463985, 22226890, 24449579, 34927970, 44453780, 48899158, 69855940, 97798316, 122247895, 244495790, 488991580]

約数ペア:

[(1, 488991580), (2, 244495790), (4, 122247895), (5, 97798316), (7, 69855940), (10, 48899158), (11, 44453780), (14, 34927970), (20, 24449579), (22, 22226890), (28, 17463985), (35, 13971188), (44, 11113445), (49, 9979420), (55, 8890756), (70, 6985594), (77, 6350540), (98, 4989710), (110, 4445378), (140, 3492797), (154, 3175270), (196, 2494855), (220, 2222689), (245, 1995884), (308, 1587635), (385, 1270108), (490, 997942), (539, 907220), (770, 635054), (980, 498971), (1078, 453610), (1540, 317527), (2156, 226805), (2695, 181444), (5390, 90722), (10780, 45361)]