129211408

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{25801}}^1$

素因数の和:26122

約数の個数: 20

約数和(自身を含む): 251156668

約数和(自身を除く): 121945260

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 5008, 25801, 51602, 103204, 206408, 412816, 8075713, 16151426, 32302852, 64605704, 129211408]

約数ペア:

[(1, 129211408), (2, 64605704), (4, 32302852), (8, 16151426), (16, 8075713), (313, 412816), (626, 206408), (1252, 103204), (2504, 51602), (5008, 25801)]