80989380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449941}}^1$

素因数の和:449956

約数の個数: 36

約数和(自身を含む): 245668332

約数和(自身を除く): 164678952

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449941, 899882, 1349823, 1799764, 2249705, 2699646, 4049469, 4499410, 5399292, 6749115, 8098938, 8998820, 13498230, 16197876, 20247345, 26996460, 40494690, 80989380]

約数ペア:

[(1, 80989380), (2, 40494690), (3, 26996460), (4, 20247345), (5, 16197876), (6, 13498230), (9, 8998820), (10, 8098938), (12, 6749115), (15, 5399292), (18, 4499410), (20, 4049469), (30, 2699646), (36, 2249705), (45, 1799764), (60, 1349823), (90, 899882), (180, 449941)]