20993920

素因数分解:

$2^7\times 5^1\times {\mathrm{32803}}^1$

素因数の和:32822

約数の個数: 32

約数和(自身を含む): 50190120

約数和(自身を除く): 29196200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32803, 65606, 131212, 164015, 262424, 328030, 524848, 656060, 1049696, 1312120, 2099392, 2624240, 4198784, 5248480, 10496960, 20993920]

約数ペア:

[(1, 20993920), (2, 10496960), (4, 5248480), (5, 4198784), (8, 2624240), (10, 2099392), (16, 1312120), (20, 1049696), (32, 656060), (40, 524848), (64, 328030), (80, 262424), (128, 164015), (160, 131212), (320, 65606), (640, 32803)]