647490956

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1\times {\mathrm{601}}^1$

素因数の和:1074

約数の個数: 48

約数和(自身を含む): 1312745280

約数和(自身を除く): 665254324

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 353, 436, 601, 706, 763, 1202, 1412, 1526, 2404, 2471, 3052, 4207, 4942, 8414, 9884, 16828, 38477, 65509, 76954, 131018, 153908, 212153, 262036, 269339, 424306, 458563, 538678, 848612, 917126, 1077356, 1485071, 1834252, 2970142, 5940284, 23124677, 46249354, 92498708, 161872739, 323745478, 647490956]

約数ペア:

[(1, 647490956), (2, 323745478), (4, 161872739), (7, 92498708), (14, 46249354), (28, 23124677), (109, 5940284), (218, 2970142), (353, 1834252), (436, 1485071), (601, 1077356), (706, 917126), (763, 848612), (1202, 538678), (1412, 458563), (1526, 424306), (2404, 269339), (2471, 262036), (3052, 212153), (4207, 153908), (4942, 131018), (8414, 76954), (9884, 65509), (16828, 38477)]