66294820

素因数分解:

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

素因数の和:700

約数の個数: 48

約数和(自身を含む): 143656128

約数和(自身を除く): 77361308

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 157, 172, 215, 314, 430, 491, 628, 785, 860, 982, 1570, 1964, 2455, 3140, 4910, 6751, 9820, 13502, 21113, 27004, 33755, 42226, 67510, 77087, 84452, 105565, 135020, 154174, 211130, 308348, 385435, 422260, 770870, 1541740, 3314741, 6629482, 13258964, 16573705, 33147410, 66294820]

約数ペア:

[(1, 66294820), (2, 33147410), (4, 16573705), (5, 13258964), (10, 6629482), (20, 3314741), (43, 1541740), (86, 770870), (157, 422260), (172, 385435), (215, 308348), (314, 211130), (430, 154174), (491, 135020), (628, 105565), (785, 84452), (860, 77087), (982, 67510), (1570, 42226), (1964, 33755), (2455, 27004), (3140, 21113), (4910, 13502), (6751, 9820)]