80471780

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{18043}}^1$

素因数の和:18275

約数の個数: 24

約数和(自身を含む): 169757952

約数和(自身を除く): 89286172

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 18043, 36086, 72172, 90215, 180430, 360860, 4023589, 8047178, 16094356, 20117945, 40235890, 80471780]

約数ペア:

[(1, 80471780), (2, 40235890), (4, 20117945), (5, 16094356), (10, 8047178), (20, 4023589), (223, 360860), (446, 180430), (892, 90215), (1115, 72172), (2230, 36086), (4460, 18043)]