132589640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 307834560

約数和(自身を除く): 175244920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 157, 172, 215, 314, 344, 430, 491, 628, 785, 860, 982, 1256, 1570, 1720, 1964, 2455, 3140, 3928, 4910, 6280, 6751, 9820, 13502, 19640, 21113, 27004, 33755, 42226, 54008, 67510, 77087, 84452, 105565, 135020, 154174, 168904, 211130, 270040, 308348, 385435, 422260, 616696, 770870, 844520, 1541740, 3083480, 3314741, 6629482, 13258964, 16573705, 26517928, 33147410, 66294820, 132589640]

約数ペア:

[(1, 132589640), (2, 66294820), (4, 33147410), (5, 26517928), (8, 16573705), (10, 13258964), (20, 6629482), (40, 3314741), (43, 3083480), (86, 1541740), (157, 844520), (172, 770870), (215, 616696), (314, 422260), (344, 385435), (430, 308348), (491, 270040), (628, 211130), (785, 168904), (860, 154174), (982, 135020), (1256, 105565), (1570, 84452), (1720, 77087), (1964, 67510), (2455, 54008), (3140, 42226), (3928, 33755), (4910, 27004), (6280, 21113), (6751, 19640), (9820, 13502)]