68915440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1198

約数の個数: 80

約数和(自身を含む): 177417216

約数和(自身を除く): 108501776

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 568, 710, 781, 880, 1103, 1136, 1420, 1562, 2206, 2840, 3124, 3905, 4412, 5515, 5680, 6248, 7810, 8824, 11030, 12133, 12496, 15620, 17648, 22060, 24266, 31240, 44120, 48532, 60665, 62480, 78313, 88240, 97064, 121330, 156626, 194128, 242660, 313252, 391565, 485320, 626504, 783130, 861443, 970640, 1253008, 1566260, 1722886, 3132520, 3445772, 4307215, 6265040, 6891544, 8614430, 13783088, 17228860, 34457720, 68915440]

約数ペア:

[(1, 68915440), (2, 34457720), (4, 17228860), (5, 13783088), (8, 8614430), (10, 6891544), (11, 6265040), (16, 4307215), (20, 3445772), (22, 3132520), (40, 1722886), (44, 1566260), (55, 1253008), (71, 970640), (80, 861443), (88, 783130), (110, 626504), (142, 485320), (176, 391565), (220, 313252), (284, 242660), (355, 194128), (440, 156626), (568, 121330), (710, 97064), (781, 88240), (880, 78313), (1103, 62480), (1136, 60665), (1420, 48532), (1562, 44120), (2206, 31240), (2840, 24266), (3124, 22060), (3905, 17648), (4412, 15620), (5515, 12496), (5680, 12133), (6248, 11030), (7810, 8824)]