20820160

素因数分解:

$2^6\times 5^1\times {\mathrm{65063}}^1$

素因数の和:65080

約数の個数: 28

約数和(自身を含む): 49578768

約数和(自身を除く): 28758608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65063, 130126, 260252, 325315, 520504, 650630, 1041008, 1301260, 2082016, 2602520, 4164032, 5205040, 10410080, 20820160]

約数ペア:

[(1, 20820160), (2, 10410080), (4, 5205040), (5, 4164032), (8, 2602520), (10, 2082016), (16, 1301260), (20, 1041008), (32, 650630), (40, 520504), (64, 325315), (80, 260252), (160, 130126), (320, 65063)]