81348705

素因数分解:

$3^4\times 5^1\times {\mathrm{200861}}^1$

素因数の和:200878

約数の個数: 20

約数和(自身を含む): 145825812

約数和(自身を除く): 64477107

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 200861, 602583, 1004305, 1807749, 3012915, 5423247, 9038745, 16269741, 27116235, 81348705]

約数ペア:

[(1, 81348705), (3, 27116235), (5, 16269741), (9, 9038745), (15, 5423247), (27, 3012915), (45, 1807749), (81, 1004305), (135, 602583), (405, 200861)]