28636875

素因数分解:

$3^3\times 5^4\times {\mathrm{1697}}^1$

素因数の和:1726

約数の個数: 40

約数和(自身を含む): 53045520

約数和(自身を除く): 24408645

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 125, 135, 225, 375, 625, 675, 1125, 1697, 1875, 3375, 5091, 5625, 8485, 15273, 16875, 25455, 42425, 45819, 76365, 127275, 212125, 229095, 381825, 636375, 1060625, 1145475, 1909125, 3181875, 5727375, 9545625, 28636875]

約数ペア:

[(1, 28636875), (3, 9545625), (5, 5727375), (9, 3181875), (15, 1909125), (25, 1145475), (27, 1060625), (45, 636375), (75, 381825), (125, 229095), (135, 212125), (225, 127275), (375, 76365), (625, 45819), (675, 42425), (1125, 25455), (1697, 16875), (1875, 15273), (3375, 8485), (5091, 5625)]