133971520

素因数分解:

$2^6\times 5^1\times {\mathrm{499}}^1\times {\mathrm{839}}^1$

素因数の和:1355

約数の個数: 56

約数和(自身を含む): 320040000

約数和(自身を除く): 186068480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 499, 839, 998, 1678, 1996, 2495, 3356, 3992, 4195, 4990, 6712, 7984, 8390, 9980, 13424, 15968, 16780, 19960, 26848, 31936, 33560, 39920, 53696, 67120, 79840, 134240, 159680, 268480, 418661, 837322, 1674644, 2093305, 3349288, 4186610, 6698576, 8373220, 13397152, 16746440, 26794304, 33492880, 66985760, 133971520]

約数ペア:

[(1, 133971520), (2, 66985760), (4, 33492880), (5, 26794304), (8, 16746440), (10, 13397152), (16, 8373220), (20, 6698576), (32, 4186610), (40, 3349288), (64, 2093305), (80, 1674644), (160, 837322), (320, 418661), (499, 268480), (839, 159680), (998, 134240), (1678, 79840), (1996, 67120), (2495, 53696), (3356, 39920), (3992, 33560), (4195, 31936), (4990, 26848), (6712, 19960), (7984, 16780), (8390, 15968), (9980, 13424)]