156978257985

素因数分解:

$3^4\times 5^1\times {\mathrm{387600637}}^1$

素因数の和:387600654

約数の個数: 20

約数和(自身を含む): 281398063188

約数和(自身を除く): 124419805203

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 387600637, 1162801911, 1938003185, 3488405733, 5814009555, 10465217199, 17442028665, 31395651597, 52326085995, 156978257985]

約数ペア:

[(1, 156978257985), (3, 52326085995), (5, 31395651597), (9, 17442028665), (15, 10465217199), (27, 5814009555), (45, 3488405733), (81, 1938003185), (135, 1162801911), (405, 387600637)]