28247580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1129}}^1$

素因数の和:1283

約数の個数: 72

約数和(自身を含む): 86377200

約数和(自身を除く): 58129620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1129, 1251, 1390, 1668, 2085, 2258, 2502, 2780, 3387, 4170, 4516, 5004, 5645, 6255, 6774, 8340, 10161, 11290, 12510, 13548, 16935, 20322, 22580, 25020, 33870, 40644, 50805, 67740, 101610, 156931, 203220, 313862, 470793, 627724, 784655, 941586, 1412379, 1569310, 1883172, 2353965, 2824758, 3138620, 4707930, 5649516, 7061895, 9415860, 14123790, 28247580]

約数ペア:

[(1, 28247580), (2, 14123790), (3, 9415860), (4, 7061895), (5, 5649516), (6, 4707930), (9, 3138620), (10, 2824758), (12, 2353965), (15, 1883172), (18, 1569310), (20, 1412379), (30, 941586), (36, 784655), (45, 627724), (60, 470793), (90, 313862), (139, 203220), (180, 156931), (278, 101610), (417, 67740), (556, 50805), (695, 40644), (834, 33870), (1129, 25020), (1251, 22580), (1390, 20322), (1668, 16935), (2085, 13548), (2258, 12510), (2502, 11290), (2780, 10161), (3387, 8340), (4170, 6774), (4516, 6255), (5004, 5645)]