20844160

素因数分解:

$2^7\times 5^1\times {\mathrm{32569}}^1$

素因数の和:32588

約数の個数: 32

約数和(自身を含む): 49832100

約数和(自身を除く): 28987940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32569, 65138, 130276, 162845, 260552, 325690, 521104, 651380, 1042208, 1302760, 2084416, 2605520, 4168832, 5211040, 10422080, 20844160]

約数ペア:

[(1, 20844160), (2, 10422080), (4, 5211040), (5, 4168832), (8, 2605520), (10, 2084416), (16, 1302760), (20, 1042208), (32, 651380), (40, 521104), (64, 325690), (80, 260552), (128, 162845), (160, 130276), (320, 65138), (640, 32569)]