123691520

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2543}}^1$

素因数の和:2585

約数の個数: 80

約数和(自身を含む): 312301440

約数和(自身を除く): 188609920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1216, 1280, 1520, 2432, 2543, 2560, 3040, 4864, 5086, 6080, 9728, 10172, 12160, 12715, 20344, 24320, 25430, 40688, 48317, 48640, 50860, 81376, 96634, 101720, 162752, 193268, 203440, 241585, 325504, 386536, 406880, 483170, 651008, 773072, 813760, 966340, 1302016, 1546144, 1627520, 1932680, 3092288, 3255040, 3865360, 6184576, 6510080, 7730720, 12369152, 15461440, 24738304, 30922880, 61845760, 123691520]

約数ペア:

[(1, 123691520), (2, 61845760), (4, 30922880), (5, 24738304), (8, 15461440), (10, 12369152), (16, 7730720), (19, 6510080), (20, 6184576), (32, 3865360), (38, 3255040), (40, 3092288), (64, 1932680), (76, 1627520), (80, 1546144), (95, 1302016), (128, 966340), (152, 813760), (160, 773072), (190, 651008), (256, 483170), (304, 406880), (320, 386536), (380, 325504), (512, 241585), (608, 203440), (640, 193268), (760, 162752), (1216, 101720), (1280, 96634), (1520, 81376), (2432, 50860), (2543, 48640), (2560, 48317), (3040, 40688), (4864, 25430), (5086, 24320), (6080, 20344), (9728, 12715), (10172, 12160)]