639377338

素因数分解:

$2^1\times {\mathrm{241}}^1\times {\mathrm{643}}^1\times {\mathrm{2063}}^1$

素因数の和:2949

約数の個数: 16

約数和(自身を含む): 965010816

約数和(自身を除く): 325633478

約数列:

[1, 2, 241, 482, 643, 1286, 2063, 4126, 154963, 309926, 497183, 994366, 1326509, 2653018, 319688669, 639377338]

約数ペア:

[(1, 639377338), (2, 319688669), (241, 2653018), (482, 1326509), (643, 994366), (1286, 497183), (2063, 309926), (4126, 154963)]