20296220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144973}}^1$

素因数の和:144989

約数の個数: 24

約数和(自身を含む): 48711264

約数和(自身を除く): 28415044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144973, 289946, 579892, 724865, 1014811, 1449730, 2029622, 2899460, 4059244, 5074055, 10148110, 20296220]

約数ペア:

[(1, 20296220), (2, 10148110), (4, 5074055), (5, 4059244), (7, 2899460), (10, 2029622), (14, 1449730), (20, 1014811), (28, 724865), (35, 579892), (70, 289946), (140, 144973)]