421875

素因数分解:

$3^3\times 5^6$

素因数の和:39

約数の個数: 28

約数和(自身を含む): 781240

約数和(自身を除く): 359365

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1875, 3125, 3375, 5625, 9375, 15625, 16875, 28125, 46875, 84375, 140625, 421875]

約数ペア:

[(1, 421875), (3, 140625), (5, 84375), (9, 46875), (15, 28125), (25, 16875), (27, 15625), (45, 9375), (75, 5625), (125, 3375), (135, 3125), (225, 1875), (375, 1125), (625, 675)]