20915880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{174299}}^1$

素因数の和:174313

約数の個数: 32

約数和(自身を含む): 62748000

約数和(自身を除く): 41832120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 174299, 348598, 522897, 697196, 871495, 1045794, 1394392, 1742990, 2091588, 2614485, 3485980, 4183176, 5228970, 6971960, 10457940, 20915880]

約数ペア:

[(1, 20915880), (2, 10457940), (3, 6971960), (4, 5228970), (5, 4183176), (6, 3485980), (8, 2614485), (10, 2091588), (12, 1742990), (15, 1394392), (20, 1045794), (24, 871495), (30, 697196), (40, 522897), (60, 348598), (120, 174299)]