78815025

素因数分解:

$3^4\times 5^2\times {\mathrm{38921}}^1$

素因数の和:38943

約数の個数: 30

約数和(自身を含む): 145996422

約数和(自身を除く): 67181397

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 38921, 116763, 194605, 350289, 583815, 973025, 1050867, 1751445, 2919075, 3152601, 5254335, 8757225, 15763005, 26271675, 78815025]

約数ペア:

[(1, 78815025), (3, 26271675), (5, 15763005), (9, 8757225), (15, 5254335), (25, 3152601), (27, 2919075), (45, 1751445), (75, 1050867), (81, 973025), (135, 583815), (225, 350289), (405, 194605), (675, 116763), (2025, 38921)]