81280080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{16127}}^1$

素因数の和:16153

約数の個数: 120

約数和(自身を含む): 311980032

約数和(自身を除く): 230699952

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 16127, 32254, 48381, 64508, 80635, 96762, 112889, 129016, 145143, 161270, 193524, 225778, 241905, 258032, 290286, 322540, 338667, 387048, 451556, 483810, 564445, 580572, 645080, 677334, 725715, 774096, 903112, 967620, 1016001, 1128890, 1161144, 1290160, 1354668, 1451430, 1693335, 1806224, 1935240, 2032002, 2257780, 2322288, 2709336, 2902860, 3386670, 3870480, 4064004, 4515560, 5080005, 5418672, 5805720, 6773340, 8128008, 9031120, 10160010, 11611440, 13546680, 16256016, 20320020, 27093360, 40640040, 81280080]

約数ペア:

[(1, 81280080), (2, 40640040), (3, 27093360), (4, 20320020), (5, 16256016), (6, 13546680), (7, 11611440), (8, 10160010), (9, 9031120), (10, 8128008), (12, 6773340), (14, 5805720), (15, 5418672), (16, 5080005), (18, 4515560), (20, 4064004), (21, 3870480), (24, 3386670), (28, 2902860), (30, 2709336), (35, 2322288), (36, 2257780), (40, 2032002), (42, 1935240), (45, 1806224), (48, 1693335), (56, 1451430), (60, 1354668), (63, 1290160), (70, 1161144), (72, 1128890), (80, 1016001), (84, 967620), (90, 903112), (105, 774096), (112, 725715), (120, 677334), (126, 645080), (140, 580572), (144, 564445), (168, 483810), (180, 451556), (210, 387048), (240, 338667), (252, 322540), (280, 290286), (315, 258032), (336, 241905), (360, 225778), (420, 193524), (504, 161270), (560, 145143), (630, 129016), (720, 112889), (840, 96762), (1008, 80635), (1260, 64508), (1680, 48381), (2520, 32254), (5040, 16127)]