20249325

素因数分解:

$3^3\times 5^2\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 37646400

約数和(自身を除く): 17397075

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 131, 135, 225, 229, 393, 655, 675, 687, 1145, 1179, 1965, 2061, 3275, 3435, 3537, 5725, 5895, 6183, 9825, 10305, 17175, 17685, 29475, 29999, 30915, 51525, 88425, 89997, 149995, 154575, 269991, 449985, 749975, 809973, 1349955, 2249925, 4049865, 6749775, 20249325]

約数ペア:

[(1, 20249325), (3, 6749775), (5, 4049865), (9, 2249925), (15, 1349955), (25, 809973), (27, 749975), (45, 449985), (75, 269991), (131, 154575), (135, 149995), (225, 89997), (229, 88425), (393, 51525), (655, 30915), (675, 29999), (687, 29475), (1145, 17685), (1179, 17175), (1965, 10305), (2061, 9825), (3275, 6183), (3435, 5895), (3537, 5725)]