18196875

素因数分解:

$3^2\times 5^5\times {\mathrm{647}}^1$

素因数の和:678

約数の個数: 36

約数和(自身を含む): 32904144

約数和(自身を除く): 14707269

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 647, 1125, 1875, 1941, 3125, 3235, 5625, 5823, 9375, 9705, 16175, 28125, 29115, 48525, 80875, 145575, 242625, 404375, 727875, 1213125, 2021875, 3639375, 6065625, 18196875]

約数ペア:

[(1, 18196875), (3, 6065625), (5, 3639375), (9, 2021875), (15, 1213125), (25, 727875), (45, 404375), (75, 242625), (125, 145575), (225, 80875), (375, 48525), (625, 29115), (647, 28125), (1125, 16175), (1875, 9705), (1941, 9375), (3125, 5823), (3235, 5625)]