8406940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4723}}^1$

素因数の和:4821

約数の個数: 24

約数和(自身を含む): 17856720

約数和(自身を除く): 9449780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 4723, 9446, 18892, 23615, 47230, 94460, 420347, 840694, 1681388, 2101735, 4203470, 8406940]

約数ペア:

[(1, 8406940), (2, 4203470), (4, 2101735), (5, 1681388), (10, 840694), (20, 420347), (89, 94460), (178, 47230), (356, 23615), (445, 18892), (890, 9446), (1780, 4723)]