80890160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 211307904

約数和(自身を除く): 130417744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 169, 193, 208, 248, 260, 310, 338, 386, 403, 496, 520, 620, 676, 772, 806, 845, 965, 1040, 1240, 1352, 1544, 1612, 1690, 1930, 2015, 2480, 2509, 2704, 3088, 3224, 3380, 3860, 4030, 5018, 5239, 5983, 6448, 6760, 7720, 8060, 10036, 10478, 11966, 12545, 13520, 15440, 16120, 20072, 20956, 23932, 25090, 26195, 29915, 32240, 32617, 40144, 41912, 47864, 50180, 52390, 59830, 65234, 77779, 83824, 95728, 100360, 104780, 119660, 130468, 155558, 163085, 200720, 209560, 239320, 260936, 311116, 326170, 388895, 419120, 478640, 521872, 622232, 652340, 777790, 1011127, 1244464, 1304680, 1555580, 2022254, 2609360, 3111160, 4044508, 5055635, 6222320, 8089016, 10111270, 16178032, 20222540, 40445080, 80890160]

約数ペア:

[(1, 80890160), (2, 40445080), (4, 20222540), (5, 16178032), (8, 10111270), (10, 8089016), (13, 6222320), (16, 5055635), (20, 4044508), (26, 3111160), (31, 2609360), (40, 2022254), (52, 1555580), (62, 1304680), (65, 1244464), (80, 1011127), (104, 777790), (124, 652340), (130, 622232), (155, 521872), (169, 478640), (193, 419120), (208, 388895), (248, 326170), (260, 311116), (310, 260936), (338, 239320), (386, 209560), (403, 200720), (496, 163085), (520, 155558), (620, 130468), (676, 119660), (772, 104780), (806, 100360), (845, 95728), (965, 83824), (1040, 77779), (1240, 65234), (1352, 59830), (1544, 52390), (1612, 50180), (1690, 47864), (1930, 41912), (2015, 40144), (2480, 32617), (2509, 32240), (2704, 29915), (3088, 26195), (3224, 25090), (3380, 23932), (3860, 20956), (4030, 20072), (5018, 16120), (5239, 15440), (5983, 13520), (6448, 12545), (6760, 11966), (7720, 10478), (8060, 10036)]