12740894930

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20886713}}^1$

素因数の和:20886781

約数の個数: 16

約数和(自身を含む): 23309572824

約数和(自身を除く): 10568677894

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 20886713, 41773426, 104433565, 208867130, 1274089493, 2548178986, 6370447465, 12740894930]

約数ペア:

[(1, 12740894930), (2, 6370447465), (5, 2548178986), (10, 1274089493), (61, 208867130), (122, 104433565), (305, 41773426), (610, 20886713)]