320038720

素因数分解:

$2^6\times 5^1\times {\mathrm{1000121}}^1$

素因数の和:1000138

約数の個数: 28

約数和(自身を含む): 762092964

約数和(自身を除く): 442054244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1000121, 2000242, 4000484, 5000605, 8000968, 10001210, 16001936, 20002420, 32003872, 40004840, 64007744, 80009680, 160019360, 320038720]

約数ペア:

[(1, 320038720), (2, 160019360), (4, 80009680), (5, 64007744), (8, 40004840), (10, 32003872), (16, 20002420), (20, 16001936), (32, 10001210), (40, 8000968), (64, 5000605), (80, 4000484), (160, 2000242), (320, 1000121)]