128891152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{619669}}^1$

素因数の和:619690

約数の個数: 20

約数和(自身を含む): 268936780

約数和(自身を除く): 140045628

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 619669, 1239338, 2478676, 4957352, 8055697, 9914704, 16111394, 32222788, 64445576, 128891152]

約数ペア:

[(1, 128891152), (2, 64445576), (4, 32222788), (8, 16111394), (13, 9914704), (16, 8055697), (26, 4957352), (52, 2478676), (104, 1239338), (208, 619669)]