81248902

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1087}}^1$

素因数の和:1396

約数の個数: 32

約数和(自身を含む): 147271680

約数和(自身を除く): 66022778

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 281, 562, 1087, 1967, 2174, 3934, 5339, 7609, 10678, 15218, 20653, 37373, 41306, 74746, 144571, 289142, 305447, 610894, 2138129, 4276258, 5803493, 11606986, 40624451, 81248902]

約数ペア:

[(1, 81248902), (2, 40624451), (7, 11606986), (14, 5803493), (19, 4276258), (38, 2138129), (133, 610894), (266, 305447), (281, 289142), (562, 144571), (1087, 74746), (1967, 41306), (2174, 37373), (3934, 20653), (5339, 15218), (7609, 10678)]