258049168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1240621}}^1$

素因数の和:1240642

約数の個数: 20

約数和(自身を含む): 538429948

約数和(自身を除く): 280380780

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1240621, 2481242, 4962484, 9924968, 16128073, 19849936, 32256146, 64512292, 129024584, 258049168]

約数ペア:

[(1, 258049168), (2, 129024584), (4, 64512292), (8, 32256146), (13, 19849936), (16, 16128073), (26, 9924968), (52, 4962484), (104, 2481242), (208, 1240621)]