20345488

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18979}}^1$

素因数の和:19054

約数の個数: 20

約数和(自身を含む): 40009840

約数和(自身を除く): 19664352

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18979, 37958, 75916, 151832, 303664, 1271593, 2543186, 5086372, 10172744, 20345488]

約数ペア:

[(1, 20345488), (2, 10172744), (4, 5086372), (8, 2543186), (16, 1271593), (67, 303664), (134, 151832), (268, 75916), (536, 37958), (1072, 18979)]