81281520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1429}}^1$

素因数の和:1527

約数の個数: 120

約数和(自身を含む): 276619200

約数和(自身を除く): 195337680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 79, 80, 90, 120, 144, 158, 180, 237, 240, 316, 360, 395, 474, 632, 711, 720, 790, 948, 1185, 1264, 1422, 1429, 1580, 1896, 2370, 2844, 2858, 3160, 3555, 3792, 4287, 4740, 5688, 5716, 6320, 7110, 7145, 8574, 9480, 11376, 11432, 12861, 14220, 14290, 17148, 18960, 21435, 22864, 25722, 28440, 28580, 34296, 42870, 51444, 56880, 57160, 64305, 68592, 85740, 102888, 112891, 114320, 128610, 171480, 205776, 225782, 257220, 338673, 342960, 451564, 514440, 564455, 677346, 903128, 1016019, 1028880, 1128910, 1354692, 1693365, 1806256, 2032038, 2257820, 2709384, 3386730, 4064076, 4515640, 5080095, 5418768, 6773460, 8128152, 9031280, 10160190, 13546920, 16256304, 20320380, 27093840, 40640760, 81281520]

約数ペア:

[(1, 81281520), (2, 40640760), (3, 27093840), (4, 20320380), (5, 16256304), (6, 13546920), (8, 10160190), (9, 9031280), (10, 8128152), (12, 6773460), (15, 5418768), (16, 5080095), (18, 4515640), (20, 4064076), (24, 3386730), (30, 2709384), (36, 2257820), (40, 2032038), (45, 1806256), (48, 1693365), (60, 1354692), (72, 1128910), (79, 1028880), (80, 1016019), (90, 903128), (120, 677346), (144, 564455), (158, 514440), (180, 451564), (237, 342960), (240, 338673), (316, 257220), (360, 225782), (395, 205776), (474, 171480), (632, 128610), (711, 114320), (720, 112891), (790, 102888), (948, 85740), (1185, 68592), (1264, 64305), (1422, 57160), (1429, 56880), (1580, 51444), (1896, 42870), (2370, 34296), (2844, 28580), (2858, 28440), (3160, 25722), (3555, 22864), (3792, 21435), (4287, 18960), (4740, 17148), (5688, 14290), (5716, 14220), (6320, 12861), (7110, 11432), (7145, 11376), (8574, 9480)]