19850625

素因数分解:

$3^2\times 5^4\times {\mathrm{3529}}^1$

素因数の和:3555

約数の個数: 30

約数和(自身を含む): 35840090

約数和(自身を除く): 15989465

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 3529, 5625, 10587, 17645, 31761, 52935, 88225, 158805, 264675, 441125, 794025, 1323375, 2205625, 3970125, 6616875, 19850625]

約数ペア:

[(1, 19850625), (3, 6616875), (5, 3970125), (9, 2205625), (15, 1323375), (25, 794025), (45, 441125), (75, 264675), (125, 158805), (225, 88225), (375, 52935), (625, 31761), (1125, 17645), (1875, 10587), (3529, 5625)]