19406366920

素因数分解:

$2^3\times 5^1\times {\mathrm{2153}}^1\times {\mathrm{225341}}^1$

素因数の和:227505

約数の個数: 32

約数和(自身を含む): 43684800120

約数和(自身を除く): 24278433200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2153, 4306, 8612, 10765, 17224, 21530, 43060, 86120, 225341, 450682, 901364, 1126705, 1802728, 2253410, 4506820, 9013640, 485159173, 970318346, 1940636692, 2425795865, 3881273384, 4851591730, 9703183460, 19406366920]

約数ペア:

[(1, 19406366920), (2, 9703183460), (4, 4851591730), (5, 3881273384), (8, 2425795865), (10, 1940636692), (20, 970318346), (40, 485159173), (2153, 9013640), (4306, 4506820), (8612, 2253410), (10765, 1802728), (17224, 1126705), (21530, 901364), (43060, 450682), (86120, 225341)]