30981392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{148949}}^1$

素因数の和:148970

約数の個数: 20

約数和(自身を含む): 64644300

約数和(自身を除く): 33662908

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 148949, 297898, 595796, 1191592, 1936337, 2383184, 3872674, 7745348, 15490696, 30981392]

約数ペア:

[(1, 30981392), (2, 15490696), (4, 7745348), (8, 3872674), (13, 2383184), (16, 1936337), (26, 1191592), (52, 595796), (104, 297898), (208, 148949)]