99971972

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{1231}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 177999360

約数和(自身を除く): 78027388

約数列:

[1, 2, 4, 79, 158, 257, 316, 514, 1028, 1231, 2462, 4924, 20303, 40606, 81212, 97249, 194498, 316367, 388996, 632734, 1265468, 24992993, 49985986, 99971972]

約数ペア:

[(1, 99971972), (2, 49985986), (4, 24992993), (79, 1265468), (158, 632734), (257, 388996), (316, 316367), (514, 194498), (1028, 97249), (1231, 81212), (2462, 40606), (4924, 20303)]