1780155

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 3538080

約数和(自身を除く): 1757925

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 179, 195, 221, 255, 537, 585, 663, 765, 895, 1105, 1611, 1989, 2327, 2685, 3043, 3315, 6981, 8055, 9129, 9945, 11635, 15215, 20943, 27387, 34905, 39559, 45645, 104715, 118677, 136935, 197795, 356031, 593385, 1780155]

約数ペア:

[(1, 1780155), (3, 593385), (5, 356031), (9, 197795), (13, 136935), (15, 118677), (17, 104715), (39, 45645), (45, 39559), (51, 34905), (65, 27387), (85, 20943), (117, 15215), (153, 11635), (179, 9945), (195, 9129), (221, 8055), (255, 6981), (537, 3315), (585, 3043), (663, 2685), (765, 2327), (895, 1989), (1105, 1611)]