81339225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{8963}}^1$

素因数の和:8998

約数の個数: 36

約数和(自身を含む): 147834288

約数和(自身を除く): 66495063

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 3025, 8963, 9075, 26889, 44815, 98593, 134445, 224075, 295779, 492965, 672225, 1084523, 1478895, 2464825, 3253569, 5422615, 7394475, 16267845, 27113075, 81339225]

約数ペア:

[(1, 81339225), (3, 27113075), (5, 16267845), (11, 7394475), (15, 5422615), (25, 3253569), (33, 2464825), (55, 1478895), (75, 1084523), (121, 672225), (165, 492965), (275, 295779), (363, 224075), (605, 134445), (825, 98593), (1815, 44815), (3025, 26889), (8963, 9075)]