3939140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2213}}^1$

素因数の和:2311

約数の個数: 24

約数和(自身を含む): 8368920

約数和(自身を除く): 4429780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 2213, 4426, 8852, 11065, 22130, 44260, 196957, 393914, 787828, 984785, 1969570, 3939140]

約数ペア:

[(1, 3939140), (2, 1969570), (4, 984785), (5, 787828), (10, 393914), (20, 196957), (89, 44260), (178, 22130), (356, 11065), (445, 8852), (890, 4426), (1780, 2213)]