18800055

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 33939360

約数和(自身を除く): 15139305

約数列:

[1, 3, 5, 9, 15, 45, 59, 73, 97, 177, 219, 291, 295, 365, 485, 531, 657, 873, 885, 1095, 1455, 2655, 3285, 4307, 4365, 5723, 7081, 12921, 17169, 21243, 21535, 28615, 35405, 38763, 51507, 63729, 64605, 85845, 106215, 193815, 257535, 318645, 417779, 1253337, 2088895, 3760011, 6266685, 18800055]

約数ペア:

[(1, 18800055), (3, 6266685), (5, 3760011), (9, 2088895), (15, 1253337), (45, 417779), (59, 318645), (73, 257535), (97, 193815), (177, 106215), (219, 85845), (291, 64605), (295, 63729), (365, 51507), (485, 38763), (531, 35405), (657, 28615), (873, 21535), (885, 21243), (1095, 17169), (1455, 12921), (2655, 7081), (3285, 5723), (4307, 4365)]