51179220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{859}}^1$

素因数の和:1205

約数の個数: 72

約数和(自身を含む): 155893920

約数和(自身を除く): 104714700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 662, 859, 993, 1324, 1655, 1718, 1986, 2577, 2979, 3310, 3436, 3972, 4295, 4965, 5154, 5958, 6620, 7731, 8590, 9930, 10308, 11916, 12885, 14895, 15462, 17180, 19860, 25770, 29790, 30924, 38655, 51540, 59580, 77310, 154620, 284329, 568658, 852987, 1137316, 1421645, 1705974, 2558961, 2843290, 3411948, 4264935, 5117922, 5686580, 8529870, 10235844, 12794805, 17059740, 25589610, 51179220]

約数ペア:

[(1, 51179220), (2, 25589610), (3, 17059740), (4, 12794805), (5, 10235844), (6, 8529870), (9, 5686580), (10, 5117922), (12, 4264935), (15, 3411948), (18, 2843290), (20, 2558961), (30, 1705974), (36, 1421645), (45, 1137316), (60, 852987), (90, 568658), (180, 284329), (331, 154620), (662, 77310), (859, 59580), (993, 51540), (1324, 38655), (1655, 30924), (1718, 29790), (1986, 25770), (2577, 19860), (2979, 17180), (3310, 15462), (3436, 14895), (3972, 12885), (4295, 11916), (4965, 10308), (5154, 9930), (5958, 8590), (6620, 7731)]