28690620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{68311}}^1$

素因数の和:68330

約数の個数: 48

約数和(自身を含む): 91811328

約数和(自身を除く): 63120708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 68311, 136622, 204933, 273244, 341555, 409866, 478177, 683110, 819732, 956354, 1024665, 1366220, 1434531, 1912708, 2049330, 2390885, 2869062, 4098660, 4781770, 5738124, 7172655, 9563540, 14345310, 28690620]

約数ペア:

[(1, 28690620), (2, 14345310), (3, 9563540), (4, 7172655), (5, 5738124), (6, 4781770), (7, 4098660), (10, 2869062), (12, 2390885), (14, 2049330), (15, 1912708), (20, 1434531), (21, 1366220), (28, 1024665), (30, 956354), (35, 819732), (42, 683110), (60, 478177), (70, 409866), (84, 341555), (105, 273244), (140, 204933), (210, 136622), (420, 68311)]