205127728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{986191}}^1$

素因数の和:986212

約数の個数: 20

約数和(自身を含む): 428007328

約数和(自身を除く): 222879600

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 986191, 1972382, 3944764, 7889528, 12820483, 15779056, 25640966, 51281932, 102563864, 205127728]

約数ペア:

[(1, 205127728), (2, 102563864), (4, 51281932), (8, 25640966), (13, 15779056), (16, 12820483), (26, 7889528), (52, 3944764), (104, 1972382), (208, 986191)]