18680625

素因数分解:

$3^6\times 5^4\times {\mathrm{41}}^1$

素因数の和:79

約数の個数: 70

約数和(自身を含む): 35852586

約数和(自身を除く): 17171961

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 75, 81, 123, 125, 135, 205, 225, 243, 369, 375, 405, 615, 625, 675, 729, 1025, 1107, 1125, 1215, 1845, 1875, 2025, 3075, 3321, 3375, 3645, 5125, 5535, 5625, 6075, 9225, 9963, 10125, 15375, 16605, 16875, 18225, 25625, 27675, 29889, 30375, 46125, 49815, 50625, 76875, 83025, 91125, 138375, 149445, 151875, 230625, 249075, 415125, 455625, 691875, 747225, 1245375, 2075625, 3736125, 6226875, 18680625]

約数ペア:

[(1, 18680625), (3, 6226875), (5, 3736125), (9, 2075625), (15, 1245375), (25, 747225), (27, 691875), (41, 455625), (45, 415125), (75, 249075), (81, 230625), (123, 151875), (125, 149445), (135, 138375), (205, 91125), (225, 83025), (243, 76875), (369, 50625), (375, 49815), (405, 46125), (615, 30375), (625, 29889), (675, 27675), (729, 25625), (1025, 18225), (1107, 16875), (1125, 16605), (1215, 15375), (1845, 10125), (1875, 9963), (2025, 9225), (3075, 6075), (3321, 5625), (3375, 5535), (3645, 5125)]