161755425

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3253}}^1$

素因数の和:3299

約数の個数: 72

約数和(自身を含む): 330463224

約数和(自身を除く): 168707799

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 153, 195, 221, 225, 255, 325, 425, 585, 663, 765, 975, 1105, 1275, 1989, 2925, 3253, 3315, 3825, 5525, 9759, 9945, 16265, 16575, 29277, 42289, 48795, 49725, 55301, 81325, 126867, 146385, 165903, 211445, 243975, 276505, 380601, 497709, 634335, 718913, 731925, 829515, 1057225, 1382525, 1903005, 2156739, 2488545, 3171675, 3594565, 4147575, 6470217, 9515025, 10783695, 12442725, 17972825, 32351085, 53918475, 161755425]

約数ペア:

[(1, 161755425), (3, 53918475), (5, 32351085), (9, 17972825), (13, 12442725), (15, 10783695), (17, 9515025), (25, 6470217), (39, 4147575), (45, 3594565), (51, 3171675), (65, 2488545), (75, 2156739), (85, 1903005), (117, 1382525), (153, 1057225), (195, 829515), (221, 731925), (225, 718913), (255, 634335), (325, 497709), (425, 380601), (585, 276505), (663, 243975), (765, 211445), (975, 165903), (1105, 146385), (1275, 126867), (1989, 81325), (2925, 55301), (3253, 49725), (3315, 48795), (3825, 42289), (5525, 29277), (9759, 16575), (9945, 16265)]