81488355

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{821}}^1$

素因数の和:1351

約数の個数: 32

約数和(自身を含む): 140857920

約数和(自身を除く): 59369565

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 509, 821, 1527, 2463, 2545, 4105, 6617, 7635, 10673, 12315, 19851, 32019, 33085, 53365, 99255, 160095, 417889, 1253667, 2089445, 5432557, 6268335, 16297671, 27162785, 81488355]

約数ペア:

[(1, 81488355), (3, 27162785), (5, 16297671), (13, 6268335), (15, 5432557), (39, 2089445), (65, 1253667), (195, 417889), (509, 160095), (821, 99255), (1527, 53365), (2463, 33085), (2545, 32019), (4105, 19851), (6617, 12315), (7635, 10673)]