20355880

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{2843}}^1$

素因数の和:3033

約数の個数: 32

約数和(自身を含む): 46072800

約数和(自身を除く): 25716920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 2843, 3580, 5686, 7160, 11372, 14215, 22744, 28430, 56860, 113720, 508897, 1017794, 2035588, 2544485, 4071176, 5088970, 10177940, 20355880]

約数ペア:

[(1, 20355880), (2, 10177940), (4, 5088970), (5, 4071176), (8, 2544485), (10, 2035588), (20, 1017794), (40, 508897), (179, 113720), (358, 56860), (716, 28430), (895, 22744), (1432, 14215), (1790, 11372), (2843, 7160), (3580, 5686)]