20289522820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144925163}}^1$

素因数の和:144925179

約数の個数: 24

約数和(自身を含む): 48694855104

約数和(自身を除く): 28405332284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144925163, 289850326, 579700652, 724625815, 1014476141, 1449251630, 2028952282, 2898503260, 4057904564, 5072380705, 10144761410, 20289522820]

約数ペア:

[(1, 20289522820), (2, 10144761410), (4, 5072380705), (5, 4057904564), (7, 2898503260), (10, 2028952282), (14, 1449251630), (20, 1014476141), (28, 724625815), (35, 579700652), (70, 289850326), (140, 144925163)]