18182475

素因数分解:

$3^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 35070672

約数和(自身を除く): 16888197

約数列:

[1, 3, 5, 9, 15, 25, 27, 41, 45, 73, 75, 81, 123, 135, 205, 219, 225, 243, 365, 369, 405, 615, 657, 675, 1025, 1095, 1107, 1215, 1825, 1845, 1971, 2025, 2993, 3075, 3285, 3321, 5475, 5535, 5913, 6075, 8979, 9225, 9855, 9963, 14965, 16425, 16605, 17739, 26937, 27675, 29565, 44895, 49275, 49815, 74825, 80811, 83025, 88695, 134685, 147825, 224475, 242433, 249075, 404055, 443475, 673425, 727299, 1212165, 2020275, 3636495, 6060825, 18182475]

約数ペア:

[(1, 18182475), (3, 6060825), (5, 3636495), (9, 2020275), (15, 1212165), (25, 727299), (27, 673425), (41, 443475), (45, 404055), (73, 249075), (75, 242433), (81, 224475), (123, 147825), (135, 134685), (205, 88695), (219, 83025), (225, 80811), (243, 74825), (365, 49815), (369, 49275), (405, 44895), (615, 29565), (657, 27675), (675, 26937), (1025, 17739), (1095, 16605), (1107, 16425), (1215, 14965), (1825, 9963), (1845, 9855), (1971, 9225), (2025, 8979), (2993, 6075), (3075, 5913), (3285, 5535), (3321, 5475)]