16420480

素因数分解:

$2^7\times 5^1\times {\mathrm{25657}}^1$

素因数の和:25676

約数の個数: 32

約数和(自身を含む): 39256740

約数和(自身を除く): 22836260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 25657, 51314, 102628, 128285, 205256, 256570, 410512, 513140, 821024, 1026280, 1642048, 2052560, 3284096, 4105120, 8210240, 16420480]

約数ペア:

[(1, 16420480), (2, 8210240), (4, 4105120), (5, 3284096), (8, 2052560), (10, 1642048), (16, 1026280), (20, 821024), (32, 513140), (40, 410512), (64, 256570), (80, 205256), (128, 128285), (160, 102628), (320, 51314), (640, 25657)]