81689925

素因数分解:

$3^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{18461}}^1$

素因数の和:18533

約数の個数: 24

約数和(自身を含む): 137357280

約数和(自身を除く): 55667355

約数列:

[1, 3, 5, 15, 25, 59, 75, 177, 295, 885, 1475, 4425, 18461, 55383, 92305, 276915, 461525, 1089199, 1384575, 3267597, 5445995, 16337985, 27229975, 81689925]

約数ペア:

[(1, 81689925), (3, 27229975), (5, 16337985), (15, 5445995), (25, 3267597), (59, 1384575), (75, 1089199), (177, 461525), (295, 276915), (885, 92305), (1475, 55383), (4425, 18461)]