19867420000

素因数分解:

$2^5\times 5^4\times {\mathrm{193}}^1\times {\mathrm{5147}}^1$

素因数の和:5370

約数の個数: 120

約数和(自身を含む): 49139626536

約数和(自身を除く): 29272206536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 193, 200, 250, 386, 400, 500, 625, 772, 800, 965, 1000, 1250, 1544, 1930, 2000, 2500, 3088, 3860, 4000, 4825, 5000, 5147, 6176, 7720, 9650, 10000, 10294, 15440, 19300, 20000, 20588, 24125, 25735, 30880, 38600, 41176, 48250, 51470, 77200, 82352, 96500, 102940, 120625, 128675, 154400, 164704, 193000, 205880, 241250, 257350, 386000, 411760, 482500, 514700, 643375, 772000, 823520, 965000, 993371, 1029400, 1286750, 1930000, 1986742, 2058800, 2573500, 3216875, 3860000, 3973484, 4117600, 4966855, 5147000, 6433750, 7946968, 9933710, 10294000, 12867500, 15893936, 19867420, 20588000, 24834275, 25735000, 31787872, 39734840, 49668550, 51470000, 79469680, 99337100, 102940000, 124171375, 158939360, 198674200, 248342750, 397348400, 496685500, 620856875, 794696800, 993371000, 1241713750, 1986742000, 2483427500, 3973484000, 4966855000, 9933710000, 19867420000]

約数ペア:

[(1, 19867420000), (2, 9933710000), (4, 4966855000), (5, 3973484000), (8, 2483427500), (10, 1986742000), (16, 1241713750), (20, 993371000), (25, 794696800), (32, 620856875), (40, 496685500), (50, 397348400), (80, 248342750), (100, 198674200), (125, 158939360), (160, 124171375), (193, 102940000), (200, 99337100), (250, 79469680), (386, 51470000), (400, 49668550), (500, 39734840), (625, 31787872), (772, 25735000), (800, 24834275), (965, 20588000), (1000, 19867420), (1250, 15893936), (1544, 12867500), (1930, 10294000), (2000, 9933710), (2500, 7946968), (3088, 6433750), (3860, 5147000), (4000, 4966855), (4825, 4117600), (5000, 3973484), (5147, 3860000), (6176, 3216875), (7720, 2573500), (9650, 2058800), (10000, 1986742), (10294, 1930000), (15440, 1286750), (19300, 1029400), (20000, 993371), (20588, 965000), (24125, 823520), (25735, 772000), (30880, 643375), (38600, 514700), (41176, 482500), (48250, 411760), (51470, 386000), (77200, 257350), (82352, 241250), (96500, 205880), (102940, 193000), (120625, 164704), (128675, 154400)]