20178453974

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{328543}}^1$

素因数の和:328700

約数の個数: 32

約数和(自身を含む): 35766614016

約数和(自身を除く): 15588160042

約数列:

[1, 2, 7, 14, 41, 82, 107, 214, 287, 574, 749, 1498, 4387, 8774, 30709, 61418, 328543, 657086, 2299801, 4599602, 13470263, 26940526, 35154101, 70308202, 94291841, 188583682, 246078707, 492157414, 1441318141, 2882636282, 10089226987, 20178453974]

約数ペア:

[(1, 20178453974), (2, 10089226987), (7, 2882636282), (14, 1441318141), (41, 492157414), (82, 246078707), (107, 188583682), (214, 94291841), (287, 70308202), (574, 35154101), (749, 26940526), (1498, 13470263), (4387, 4599602), (8774, 2299801), (30709, 657086), (61418, 328543)]