9902140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5563}}^1$

素因数の和:5661

約数の個数: 24

約数和(自身を含む): 21031920

約数和(自身を除く): 11129780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 5563, 11126, 22252, 27815, 55630, 111260, 495107, 990214, 1980428, 2475535, 4951070, 9902140]

約数ペア:

[(1, 9902140), (2, 4951070), (4, 2475535), (5, 1980428), (10, 990214), (20, 495107), (89, 111260), (178, 55630), (356, 27815), (445, 22252), (890, 11126), (1780, 5563)]