998720

素因数分解:

$2^6\times 5^1\times {\mathrm{3121}}^1$

素因数の和:3138

約数の個数: 28

約数和(自身を含む): 2378964

約数和(自身を除く): 1380244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 3121, 6242, 12484, 15605, 24968, 31210, 49936, 62420, 99872, 124840, 199744, 249680, 499360, 998720]

約数ペア:

[(1, 998720), (2, 499360), (4, 249680), (5, 199744), (8, 124840), (10, 99872), (16, 62420), (20, 49936), (32, 31210), (40, 24968), (64, 15605), (80, 12484), (160, 6242), (320, 3121)]