19935980

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{2081}}^1$

素因数の和:2569

約数の個数: 24

約数和(自身を含む): 41973120

約数和(自身を除く): 22037140

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2081, 2395, 4162, 4790, 8324, 9580, 10405, 20810, 41620, 996799, 1993598, 3987196, 4983995, 9967990, 19935980]

約数ペア:

[(1, 19935980), (2, 9967990), (4, 4983995), (5, 3987196), (10, 1993598), (20, 996799), (479, 41620), (958, 20810), (1916, 10405), (2081, 9580), (2395, 8324), (4162, 4790)]