71321880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{431}}^1$

素因数の和:649

約数の個数: 128

約数和(自身を含む): 246343680

約数和(自身を除く): 175021800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 197, 210, 280, 394, 420, 431, 591, 788, 840, 862, 985, 1182, 1293, 1379, 1576, 1724, 1970, 2155, 2364, 2586, 2758, 2955, 3017, 3448, 3940, 4137, 4310, 4728, 5172, 5516, 5910, 6034, 6465, 6895, 7880, 8274, 8620, 9051, 10344, 11032, 11820, 12068, 12930, 13790, 15085, 16548, 17240, 18102, 20685, 23640, 24136, 25860, 27580, 30170, 33096, 36204, 41370, 45255, 51720, 55160, 60340, 72408, 82740, 84907, 90510, 120680, 165480, 169814, 181020, 254721, 339628, 362040, 424535, 509442, 594349, 679256, 849070, 1018884, 1188698, 1273605, 1698140, 1783047, 2037768, 2377396, 2547210, 2971745, 3396280, 3566094, 4754792, 5094420, 5943490, 7132188, 8915235, 10188840, 11886980, 14264376, 17830470, 23773960, 35660940, 71321880]

約数ペア:

[(1, 71321880), (2, 35660940), (3, 23773960), (4, 17830470), (5, 14264376), (6, 11886980), (7, 10188840), (8, 8915235), (10, 7132188), (12, 5943490), (14, 5094420), (15, 4754792), (20, 3566094), (21, 3396280), (24, 2971745), (28, 2547210), (30, 2377396), (35, 2037768), (40, 1783047), (42, 1698140), (56, 1273605), (60, 1188698), (70, 1018884), (84, 849070), (105, 679256), (120, 594349), (140, 509442), (168, 424535), (197, 362040), (210, 339628), (280, 254721), (394, 181020), (420, 169814), (431, 165480), (591, 120680), (788, 90510), (840, 84907), (862, 82740), (985, 72408), (1182, 60340), (1293, 55160), (1379, 51720), (1576, 45255), (1724, 41370), (1970, 36204), (2155, 33096), (2364, 30170), (2586, 27580), (2758, 25860), (2955, 24136), (3017, 23640), (3448, 20685), (3940, 18102), (4137, 17240), (4310, 16548), (4728, 15085), (5172, 13790), (5516, 12930), (5910, 12068), (6034, 11820), (6465, 11032), (6895, 10344), (7880, 9051), (8274, 8620)]