81703040

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6719}}^1$

素因数の和:6757

約数の個数: 64

約数和(自身を含む): 205632000

約数和(自身を除く): 123928960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 760, 1216, 1520, 2432, 3040, 6080, 6719, 12160, 13438, 26876, 33595, 53752, 67190, 107504, 127661, 134380, 215008, 255322, 268760, 430016, 510644, 537520, 638305, 860032, 1021288, 1075040, 1276610, 2042576, 2150080, 2553220, 4085152, 4300160, 5106440, 8170304, 10212880, 16340608, 20425760, 40851520, 81703040]

約数ペア:

[(1, 81703040), (2, 40851520), (4, 20425760), (5, 16340608), (8, 10212880), (10, 8170304), (16, 5106440), (19, 4300160), (20, 4085152), (32, 2553220), (38, 2150080), (40, 2042576), (64, 1276610), (76, 1075040), (80, 1021288), (95, 860032), (128, 638305), (152, 537520), (160, 510644), (190, 430016), (304, 268760), (320, 255322), (380, 215008), (608, 134380), (640, 127661), (760, 107504), (1216, 67190), (1520, 53752), (2432, 33595), (3040, 26876), (6080, 13438), (6719, 12160)]