12820875

素因数分解:

$3^1\times 5^3\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 21565440

約数和(自身を除く): 8744565

約数列:

[1, 3, 5, 15, 25, 75, 125, 179, 191, 375, 537, 573, 895, 955, 2685, 2865, 4475, 4775, 13425, 14325, 22375, 23875, 34189, 67125, 71625, 102567, 170945, 512835, 854725, 2564175, 4273625, 12820875]

約数ペア:

[(1, 12820875), (3, 4273625), (5, 2564175), (15, 854725), (25, 512835), (75, 170945), (125, 102567), (179, 71625), (191, 67125), (375, 34189), (537, 23875), (573, 22375), (895, 14325), (955, 13425), (2685, 4775), (2865, 4475)]