779025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:90

約数の個数: 48

約数和(自身を含む): 1499904

約数和(自身を除く): 720879

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 47, 51, 65, 75, 85, 141, 195, 221, 235, 255, 325, 425, 611, 663, 705, 799, 975, 1105, 1175, 1275, 1833, 2397, 3055, 3315, 3525, 3995, 5525, 9165, 10387, 11985, 15275, 16575, 19975, 31161, 45825, 51935, 59925, 155805, 259675, 779025]

約数ペア:

[(1, 779025), (3, 259675), (5, 155805), (13, 59925), (15, 51935), (17, 45825), (25, 31161), (39, 19975), (47, 16575), (51, 15275), (65, 11985), (75, 10387), (85, 9165), (141, 5525), (195, 3995), (221, 3525), (235, 3315), (255, 3055), (325, 2397), (425, 1833), (611, 1275), (663, 1175), (705, 1105), (799, 975)]