67824760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{839}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 159667200

約数和(自身を除く): 91842440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 839, 860, 940, 1678, 1720, 1880, 2021, 3356, 4042, 4195, 6712, 8084, 8390, 10105, 16168, 16780, 20210, 33560, 36077, 39433, 40420, 72154, 78866, 80840, 144308, 157732, 180385, 197165, 288616, 315464, 360770, 394330, 721540, 788660, 1443080, 1577320, 1695619, 3391238, 6782476, 8478095, 13564952, 16956190, 33912380, 67824760]

約数ペア:

[(1, 67824760), (2, 33912380), (4, 16956190), (5, 13564952), (8, 8478095), (10, 6782476), (20, 3391238), (40, 1695619), (43, 1577320), (47, 1443080), (86, 788660), (94, 721540), (172, 394330), (188, 360770), (215, 315464), (235, 288616), (344, 197165), (376, 180385), (430, 157732), (470, 144308), (839, 80840), (860, 78866), (940, 72154), (1678, 40420), (1720, 39433), (1880, 36077), (2021, 33560), (3356, 20210), (4042, 16780), (4195, 16168), (6712, 10105), (8084, 8390)]