171869680

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:442

約数の個数: 80

約数和(自身を含む): 409795200

約数和(自身を除く): 237925520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 101, 178, 202, 239, 356, 404, 445, 478, 505, 712, 808, 890, 956, 1010, 1195, 1424, 1616, 1780, 1912, 2020, 2390, 3560, 3824, 4040, 4780, 7120, 8080, 8989, 9560, 17978, 19120, 21271, 24139, 35956, 42542, 44945, 48278, 71912, 85084, 89890, 96556, 106355, 120695, 143824, 170168, 179780, 193112, 212710, 241390, 340336, 359560, 386224, 425420, 482780, 719120, 850840, 965560, 1701680, 1931120, 2148371, 4296742, 8593484, 10741855, 17186968, 21483710, 34373936, 42967420, 85934840, 171869680]

約数ペア:

[(1, 171869680), (2, 85934840), (4, 42967420), (5, 34373936), (8, 21483710), (10, 17186968), (16, 10741855), (20, 8593484), (40, 4296742), (80, 2148371), (89, 1931120), (101, 1701680), (178, 965560), (202, 850840), (239, 719120), (356, 482780), (404, 425420), (445, 386224), (478, 359560), (505, 340336), (712, 241390), (808, 212710), (890, 193112), (956, 179780), (1010, 170168), (1195, 143824), (1424, 120695), (1616, 106355), (1780, 96556), (1912, 89890), (2020, 85084), (2390, 71912), (3560, 48278), (3824, 44945), (4040, 42542), (4780, 35956), (7120, 24139), (8080, 21271), (8989, 19120), (9560, 17978)]