81103040

素因数分解:

$2^6\times 5^1\times {\mathrm{253447}}^1$

素因数の和:253464

約数の個数: 28

約数和(自身を含む): 193127376

約数和(自身を除く): 112024336

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 253447, 506894, 1013788, 1267235, 2027576, 2534470, 4055152, 5068940, 8110304, 10137880, 16220608, 20275760, 40551520, 81103040]

約数ペア:

[(1, 81103040), (2, 40551520), (4, 20275760), (5, 16220608), (8, 10137880), (10, 8110304), (16, 5068940), (20, 4055152), (32, 2534470), (40, 2027576), (64, 1267235), (80, 1013788), (160, 506894), (320, 253447)]