20810305440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{68491}}^1$

素因数の和:68723

約数の個数: 144

約数和(自身を含む): 71352773856

約数和(自身を除く): 50542468416

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 211, 240, 288, 360, 422, 480, 633, 720, 844, 1055, 1266, 1440, 1688, 1899, 2110, 2532, 3165, 3376, 3798, 4220, 5064, 6330, 6752, 7596, 8440, 9495, 10128, 12660, 15192, 16880, 18990, 20256, 25320, 30384, 33760, 37980, 50640, 60768, 68491, 75960, 101280, 136982, 151920, 205473, 273964, 303840, 342455, 410946, 547928, 616419, 684910, 821892, 1027365, 1095856, 1232838, 1369820, 1643784, 2054730, 2191712, 2465676, 2739640, 3082095, 3287568, 4109460, 4931352, 5479280, 6164190, 6575136, 8218920, 9862704, 10958560, 12328380, 14451601, 16437840, 19725408, 24656760, 28903202, 32875680, 43354803, 49313520, 57806404, 72258005, 86709606, 98627040, 115612808, 130064409, 144516010, 173419212, 216774015, 231225616, 260128818, 289032020, 346838424, 433548030, 462451232, 520257636, 578064040, 650322045, 693676848, 867096060, 1040515272, 1156128080, 1300644090, 1387353696, 1734192120, 2081030544, 2312256160, 2601288180, 3468384240, 4162061088, 5202576360, 6936768480, 10405152720, 20810305440]

約数ペア:

[(1, 20810305440), (2, 10405152720), (3, 6936768480), (4, 5202576360), (5, 4162061088), (6, 3468384240), (8, 2601288180), (9, 2312256160), (10, 2081030544), (12, 1734192120), (15, 1387353696), (16, 1300644090), (18, 1156128080), (20, 1040515272), (24, 867096060), (30, 693676848), (32, 650322045), (36, 578064040), (40, 520257636), (45, 462451232), (48, 433548030), (60, 346838424), (72, 289032020), (80, 260128818), (90, 231225616), (96, 216774015), (120, 173419212), (144, 144516010), (160, 130064409), (180, 115612808), (211, 98627040), (240, 86709606), (288, 72258005), (360, 57806404), (422, 49313520), (480, 43354803), (633, 32875680), (720, 28903202), (844, 24656760), (1055, 19725408), (1266, 16437840), (1440, 14451601), (1688, 12328380), (1899, 10958560), (2110, 9862704), (2532, 8218920), (3165, 6575136), (3376, 6164190), (3798, 5479280), (4220, 4931352), (5064, 4109460), (6330, 3287568), (6752, 3082095), (7596, 2739640), (8440, 2465676), (9495, 2191712), (10128, 2054730), (12660, 1643784), (15192, 1369820), (16880, 1232838), (18990, 1095856), (20256, 1027365), (25320, 821892), (30384, 684910), (33760, 616419), (37980, 547928), (50640, 410946), (60768, 342455), (68491, 303840), (75960, 273964), (101280, 205473), (136982, 151920)]