71729145

素因数分解:

$3^4\times 5^1\times {\mathrm{177109}}^1$

素因数の和:177126

約数の個数: 20

約数和(自身を含む): 128581860

約数和(自身を除く): 56852715

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 177109, 531327, 885545, 1593981, 2656635, 4781943, 7969905, 14345829, 23909715, 71729145]

約数ペア:

[(1, 71729145), (3, 23909715), (5, 14345829), (9, 7969905), (15, 4781943), (27, 2656635), (45, 1593981), (81, 885545), (135, 531327), (405, 177109)]