81336375

素因数分解:

$3^2\times 5^3\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:585

約数の個数: 48

約数和(自身を含む): 147768192

約数和(自身を除く): 66431817

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 197, 225, 367, 375, 591, 985, 1101, 1125, 1773, 1835, 2955, 3303, 4925, 5505, 8865, 9175, 14775, 16515, 24625, 27525, 44325, 45875, 72299, 73875, 82575, 137625, 216897, 221625, 361495, 412875, 650691, 1084485, 1807475, 3253455, 5422425, 9037375, 16267275, 27112125, 81336375]

約数ペア:

[(1, 81336375), (3, 27112125), (5, 16267275), (9, 9037375), (15, 5422425), (25, 3253455), (45, 1807475), (75, 1084485), (125, 650691), (197, 412875), (225, 361495), (367, 221625), (375, 216897), (591, 137625), (985, 82575), (1101, 73875), (1125, 72299), (1773, 45875), (1835, 44325), (2955, 27525), (3303, 24625), (4925, 16515), (5505, 14775), (8865, 9175)]