19243580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 23848420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 569, 890, 1138, 1691, 1780, 2276, 2845, 3382, 5690, 6764, 8455, 10811, 11380, 16910, 21622, 33820, 43244, 50641, 54055, 101282, 108110, 202564, 216220, 253205, 506410, 962179, 1012820, 1924358, 3848716, 4810895, 9621790, 19243580]

約数ペア:

[(1, 19243580), (2, 9621790), (4, 4810895), (5, 3848716), (10, 1924358), (19, 1012820), (20, 962179), (38, 506410), (76, 253205), (89, 216220), (95, 202564), (178, 108110), (190, 101282), (356, 54055), (380, 50641), (445, 43244), (569, 33820), (890, 21622), (1138, 16910), (1691, 11380), (1780, 10811), (2276, 8455), (2845, 6764), (3382, 5690)]