28142720

素因数分解:

$2^7\times 5^1\times {\mathrm{43973}}^1$

素因数の和:43992

約数の個数: 32

約数和(自身を含む): 67280220

約数和(自身を除く): 39137500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 43973, 87946, 175892, 219865, 351784, 439730, 703568, 879460, 1407136, 1758920, 2814272, 3517840, 5628544, 7035680, 14071360, 28142720]

約数ペア:

[(1, 28142720), (2, 14071360), (4, 7035680), (5, 5628544), (8, 3517840), (10, 2814272), (16, 1758920), (20, 1407136), (32, 879460), (40, 703568), (64, 439730), (80, 351784), (128, 219865), (160, 175892), (320, 87946), (640, 43973)]