256995004

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{30493}}^1$

素因数の和:30554

約数の個数: 36

約数和(自身を含む): 535352664

約数和(自身を除く): 278357660

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 4214, 8428, 30493, 60986, 121972, 213451, 426902, 853804, 1311199, 1494157, 2622398, 2988314, 5244796, 5976628, 9178393, 18356786, 36713572, 64248751, 128497502, 256995004]

約数ペア:

[(1, 256995004), (2, 128497502), (4, 64248751), (7, 36713572), (14, 18356786), (28, 9178393), (43, 5976628), (49, 5244796), (86, 2988314), (98, 2622398), (172, 1494157), (196, 1311199), (301, 853804), (602, 426902), (1204, 213451), (2107, 121972), (4214, 60986), (8428, 30493)]