21470080

素因数分解:

$2^7\times 5^1\times {\mathrm{33547}}^1$

素因数の和:33566

約数の個数: 32

約数和(自身を含む): 51328440

約数和(自身を除く): 29858360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33547, 67094, 134188, 167735, 268376, 335470, 536752, 670940, 1073504, 1341880, 2147008, 2683760, 4294016, 5367520, 10735040, 21470080]

約数ペア:

[(1, 21470080), (2, 10735040), (4, 5367520), (5, 4294016), (8, 2683760), (10, 2147008), (16, 1341880), (20, 1073504), (32, 670940), (40, 536752), (64, 335470), (80, 268376), (128, 167735), (160, 134188), (320, 67094), (640, 33547)]