27807220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{198623}}^1$

素因数の和:198639

約数の個数: 24

約数和(自身を含む): 66737664

約数和(自身を除く): 38930444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 198623, 397246, 794492, 993115, 1390361, 1986230, 2780722, 3972460, 5561444, 6951805, 13903610, 27807220]

約数ペア:

[(1, 27807220), (2, 13903610), (4, 6951805), (5, 5561444), (7, 3972460), (10, 2780722), (14, 1986230), (20, 1390361), (28, 993115), (35, 794492), (70, 397246), (140, 198623)]