28876875

素因数分解:

$3^1\times 5^4\times {\mathrm{15401}}^1$

素因数の和:15424

約数の個数: 20

約数和(自身を含む): 48115848

約数和(自身を除く): 19238973

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 15401, 46203, 77005, 231015, 385025, 1155075, 1925125, 5775375, 9625625, 28876875]

約数ペア:

[(1, 28876875), (3, 9625625), (5, 5775375), (15, 1925125), (25, 1155075), (75, 385025), (125, 231015), (375, 77005), (625, 46203), (1875, 15401)]