80018080

素因数分解:

$2^5\times 5^1\times {\mathrm{500113}}^1$

素因数の和:500128

約数の個数: 24

約数和(自身を含む): 189043092

約数和(自身を除く): 109025012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 500113, 1000226, 2000452, 2500565, 4000904, 5001130, 8001808, 10002260, 16003616, 20004520, 40009040, 80018080]

約数ペア:

[(1, 80018080), (2, 40009040), (4, 20004520), (5, 16003616), (8, 10002260), (10, 8001808), (16, 5001130), (20, 4000904), (32, 2500565), (40, 2000452), (80, 1000226), (160, 500113)]