208039220

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{38669}}^1$

素因数の和:38947

約数の個数: 24

約数和(自身を含む): 438517800

約数和(自身を除く): 230478580

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 38669, 77338, 154676, 193345, 386690, 773380, 10401961, 20803922, 41607844, 52009805, 104019610, 208039220]

約数ペア:

[(1, 208039220), (2, 104019610), (4, 52009805), (5, 41607844), (10, 20803922), (20, 10401961), (269, 773380), (538, 386690), (1076, 193345), (1345, 154676), (2690, 77338), (5380, 38669)]