20763700

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{2333}}^1$

素因数の和:2436

約数の個数: 36

約数和(自身を含む): 45583020

約数和(自身を除く): 24819320

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 2333, 4450, 4666, 8900, 9332, 11665, 23330, 46660, 58325, 116650, 207637, 233300, 415274, 830548, 1038185, 2076370, 4152740, 5190925, 10381850, 20763700]

約数ペア:

[(1, 20763700), (2, 10381850), (4, 5190925), (5, 4152740), (10, 2076370), (20, 1038185), (25, 830548), (50, 415274), (89, 233300), (100, 207637), (178, 116650), (356, 58325), (445, 46660), (890, 23330), (1780, 11665), (2225, 9332), (2333, 8900), (4450, 4666)]