19204760

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2153}}^1$

素因数の和:2387

約数の個数: 32

約数和(自身を含む): 43424640

約数和(自身を除く): 24219880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2153, 2230, 4306, 4460, 8612, 8920, 10765, 17224, 21530, 43060, 86120, 480119, 960238, 1920476, 2400595, 3840952, 4801190, 9602380, 19204760]

約数ペア:

[(1, 19204760), (2, 9602380), (4, 4801190), (5, 3840952), (8, 2400595), (10, 1920476), (20, 960238), (40, 480119), (223, 86120), (446, 43060), (892, 21530), (1115, 17224), (1784, 10765), (2153, 8920), (2230, 8612), (4306, 4460)]