28151220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1499}}^1$

素因数の和:1824

約数の個数: 48

約数和(自身を含む): 79128000

約数和(自身を除く): 50976780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1252, 1499, 1565, 1878, 2998, 3130, 3756, 4497, 4695, 5996, 6260, 7495, 8994, 9390, 14990, 17988, 18780, 22485, 29980, 44970, 89940, 469187, 938374, 1407561, 1876748, 2345935, 2815122, 4691870, 5630244, 7037805, 9383740, 14075610, 28151220]

約数ペア:

[(1, 28151220), (2, 14075610), (3, 9383740), (4, 7037805), (5, 5630244), (6, 4691870), (10, 2815122), (12, 2345935), (15, 1876748), (20, 1407561), (30, 938374), (60, 469187), (313, 89940), (626, 44970), (939, 29980), (1252, 22485), (1499, 18780), (1565, 17988), (1878, 14990), (2998, 9390), (3130, 8994), (3756, 7495), (4497, 6260), (4695, 5996)]