1012820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 2154600

約数和(自身を除く): 1141780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 569, 890, 1138, 1780, 2276, 2845, 5690, 11380, 50641, 101282, 202564, 253205, 506410, 1012820]

約数ペア:

[(1, 1012820), (2, 506410), (4, 253205), (5, 202564), (10, 101282), (20, 50641), (89, 11380), (178, 5690), (356, 2845), (445, 2276), (569, 1780), (890, 1138)]