221461875

素因数分解:

$3^2\times 5^4\times {\mathrm{39371}}^1$

素因数の和:39397

約数の個数: 30

約数和(自身を含む): 399743916

約数和(自身を除く): 178282041

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 5625, 39371, 118113, 196855, 354339, 590565, 984275, 1771695, 2952825, 4921375, 8858475, 14764125, 24606875, 44292375, 73820625, 221461875]

約数ペア:

[(1, 221461875), (3, 73820625), (5, 44292375), (9, 24606875), (15, 14764125), (25, 8858475), (45, 4921375), (75, 2952825), (125, 1771695), (225, 984275), (375, 590565), (625, 354339), (1125, 196855), (1875, 118113), (5625, 39371)]