28783980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{159911}}^1$

素因数の和:159926

約数の個数: 36

約数和(自身を含む): 87311952

約数和(自身を除く): 58527972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 159911, 319822, 479733, 639644, 799555, 959466, 1439199, 1599110, 1918932, 2398665, 2878398, 3198220, 4797330, 5756796, 7195995, 9594660, 14391990, 28783980]

約数ペア:

[(1, 28783980), (2, 14391990), (3, 9594660), (4, 7195995), (5, 5756796), (6, 4797330), (9, 3198220), (10, 2878398), (12, 2398665), (15, 1918932), (18, 1599110), (20, 1439199), (30, 959466), (36, 799555), (45, 639644), (60, 479733), (90, 319822), (180, 159911)]