2018820820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1134169}}^1$

素因数の和:1134267

約数の個数: 24

約数和(自身を含む): 4287162600

約数和(自身を除く): 2268341780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 1134169, 2268338, 4536676, 5670845, 11341690, 22683380, 100941041, 201882082, 403764164, 504705205, 1009410410, 2018820820]

約数ペア:

[(1, 2018820820), (2, 1009410410), (4, 504705205), (5, 403764164), (10, 201882082), (20, 100941041), (89, 22683380), (178, 11341690), (356, 5670845), (445, 4536676), (890, 2268338), (1780, 1134169)]