20677680

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3191}}^1$

素因数の和:3216

約数の個数: 100

約数和(自身を含む): 71839152

約数和(自身を除く): 51161472

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, 3191, 3240, 6382, 6480, 9573, 12764, 15955, 19146, 25528, 28719, 31910, 38292, 47865, 51056, 57438, 63820, 76584, 86157, 95730, 114876, 127640, 143595, 153168, 172314, 191460, 229752, 255280, 258471, 287190, 344628, 382920, 430785, 459504, 516942, 574380, 689256, 765840, 861570, 1033884, 1148760, 1292355, 1378512, 1723140, 2067768, 2297520, 2584710, 3446280, 4135536, 5169420, 6892560, 10338840, 20677680]

約数ペア:

[(1, 20677680), (2, 10338840), (3, 6892560), (4, 5169420), (5, 4135536), (6, 3446280), (8, 2584710), (9, 2297520), (10, 2067768), (12, 1723140), (15, 1378512), (16, 1292355), (18, 1148760), (20, 1033884), (24, 861570), (27, 765840), (30, 689256), (36, 574380), (40, 516942), (45, 459504), (48, 430785), (54, 382920), (60, 344628), (72, 287190), (80, 258471), (81, 255280), (90, 229752), (108, 191460), (120, 172314), (135, 153168), (144, 143595), (162, 127640), (180, 114876), (216, 95730), (240, 86157), (270, 76584), (324, 63820), (360, 57438), (405, 51056), (432, 47865), (540, 38292), (648, 31910), (720, 28719), (810, 25528), (1080, 19146), (1296, 15955), (1620, 12764), (2160, 9573), (3191, 6480), (3240, 6382)]