138914672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{667859}}^1$

素因数の和:667880

約数の個数: 20

約数和(自身を含む): 289851240

約数和(自身を除く): 150936568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 667859, 1335718, 2671436, 5342872, 8682167, 10685744, 17364334, 34728668, 69457336, 138914672]

約数ペア:

[(1, 138914672), (2, 69457336), (4, 34728668), (8, 17364334), (13, 10685744), (16, 8682167), (26, 5342872), (52, 2671436), (104, 1335718), (208, 667859)]