81019440

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{12503}}^1$

素因数の和:12528

約数の個数: 100

約数和(自身を含む): 281415024

約数和(自身を除く): 200395584

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 12503, 25006, 37509, 50012, 62515, 75018, 100024, 112527, 125030, 150036, 187545, 200048, 225054, 250060, 300072, 337581, 375090, 450108, 500120, 562635, 600144, 675162, 750180, 900216, 1000240, 1012743, 1125270, 1350324, 1500360, 1687905, 1800432, 2025486, 2250540, 2700648, 3000720, 3375810, 4050972, 4501080, 5063715, 5401296, 6751620, 8101944, 9002160, 10127430, 13503240, 16203888, 20254860, 27006480, 40509720, 81019440]

約数ペア:

[(1, 81019440), (2, 40509720), (3, 27006480), (4, 20254860), (5, 16203888), (6, 13503240), (8, 10127430), (9, 9002160), (10, 8101944), (12, 6751620), (15, 5401296), (16, 5063715), (18, 4501080), (20, 4050972), (24, 3375810), (27, 3000720), (30, 2700648), (36, 2250540), (40, 2025486), (45, 1800432), (48, 1687905), (54, 1500360), (60, 1350324), (72, 1125270), (80, 1012743), (81, 1000240), (90, 900216), (108, 750180), (120, 675162), (135, 600144), (144, 562635), (162, 500120), (180, 450108), (216, 375090), (240, 337581), (270, 300072), (324, 250060), (360, 225054), (405, 200048), (432, 187545), (540, 150036), (648, 125030), (720, 112527), (810, 100024), (1080, 75018), (1296, 62515), (1620, 50012), (2160, 37509), (3240, 25006), (6480, 12503)]