99985280

素因数分解:

$2^7\times 5^1\times {\mathrm{156227}}^1$

素因数の和:156246

約数の個数: 32

約数和(自身を含む): 239028840

約数和(自身を除く): 139043560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 156227, 312454, 624908, 781135, 1249816, 1562270, 2499632, 3124540, 4999264, 6249080, 9998528, 12498160, 19997056, 24996320, 49992640, 99985280]

約数ペア:

[(1, 99985280), (2, 49992640), (4, 24996320), (5, 19997056), (8, 12498160), (10, 9998528), (16, 6249080), (20, 4999264), (32, 3124540), (40, 2499632), (64, 1562270), (80, 1249816), (128, 781135), (160, 624908), (320, 312454), (640, 156227)]