220996985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{571}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 300478464

約数和(自身を除く): 79481479

約数列:

[1, 5, 11, 31, 55, 155, 227, 341, 571, 1135, 1705, 2497, 2855, 6281, 7037, 12485, 17701, 31405, 35185, 77407, 88505, 129617, 194711, 387035, 648085, 973555, 1425787, 4018127, 7128935, 20090635, 44199397, 220996985]

約数ペア:

[(1, 220996985), (5, 44199397), (11, 20090635), (31, 7128935), (55, 4018127), (155, 1425787), (227, 973555), (341, 648085), (571, 387035), (1135, 194711), (1705, 129617), (2497, 88505), (2855, 77407), (6281, 35185), (7037, 31405), (12485, 17701)]