2687940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 8288280

約数和(自身を除く): 5600340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 137, 180, 218, 274, 327, 411, 436, 545, 548, 654, 685, 822, 981, 1090, 1233, 1308, 1370, 1635, 1644, 1962, 2055, 2180, 2466, 2740, 3270, 3924, 4110, 4905, 4932, 6165, 6540, 8220, 9810, 12330, 14933, 19620, 24660, 29866, 44799, 59732, 74665, 89598, 134397, 149330, 179196, 223995, 268794, 298660, 447990, 537588, 671985, 895980, 1343970, 2687940]

約数ペア:

[(1, 2687940), (2, 1343970), (3, 895980), (4, 671985), (5, 537588), (6, 447990), (9, 298660), (10, 268794), (12, 223995), (15, 179196), (18, 149330), (20, 134397), (30, 89598), (36, 74665), (45, 59732), (60, 44799), (90, 29866), (109, 24660), (137, 19620), (180, 14933), (218, 12330), (274, 9810), (327, 8220), (411, 6540), (436, 6165), (545, 4932), (548, 4905), (654, 4110), (685, 3924), (822, 3270), (981, 2740), (1090, 2466), (1233, 2180), (1308, 2055), (1370, 1962), (1635, 1644)]