81840525

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{83939}}^1$

素因数の和:83965

約数の個数: 24

約数和(自身を含む): 145719840

約数和(自身を除く): 63879315

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 83939, 251817, 419695, 1091207, 1259085, 2098475, 3273621, 5456035, 6295425, 16368105, 27280175, 81840525]

約数ペア:

[(1, 81840525), (3, 27280175), (5, 16368105), (13, 6295425), (15, 5456035), (25, 3273621), (39, 2098475), (65, 1259085), (75, 1091207), (195, 419695), (325, 251817), (975, 83939)]