81262160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{151}}^1$

素因数の和:233

約数の個数: 120

約数和(自身を含む): 224592768

約数和(自身を除く): 143330608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 151, 155, 217, 248, 280, 302, 310, 434, 496, 560, 604, 620, 755, 868, 961, 1057, 1085, 1208, 1240, 1510, 1736, 1922, 2114, 2170, 2416, 2480, 3020, 3472, 3844, 4228, 4340, 4681, 4805, 5285, 6040, 6727, 7688, 8456, 8680, 9362, 9610, 10570, 12080, 13454, 15376, 16912, 17360, 18724, 19220, 21140, 23405, 26908, 32767, 33635, 37448, 38440, 42280, 46810, 53816, 65534, 67270, 74896, 76880, 84560, 93620, 107632, 131068, 134540, 145111, 163835, 187240, 262136, 269080, 290222, 327670, 374480, 524272, 538160, 580444, 655340, 725555, 1015777, 1160888, 1310680, 1451110, 2031554, 2321776, 2621360, 2902220, 4063108, 5078885, 5804440, 8126216, 10157770, 11608880, 16252432, 20315540, 40631080, 81262160]

約数ペア:

[(1, 81262160), (2, 40631080), (4, 20315540), (5, 16252432), (7, 11608880), (8, 10157770), (10, 8126216), (14, 5804440), (16, 5078885), (20, 4063108), (28, 2902220), (31, 2621360), (35, 2321776), (40, 2031554), (56, 1451110), (62, 1310680), (70, 1160888), (80, 1015777), (112, 725555), (124, 655340), (140, 580444), (151, 538160), (155, 524272), (217, 374480), (248, 327670), (280, 290222), (302, 269080), (310, 262136), (434, 187240), (496, 163835), (560, 145111), (604, 134540), (620, 131068), (755, 107632), (868, 93620), (961, 84560), (1057, 76880), (1085, 74896), (1208, 67270), (1240, 65534), (1510, 53816), (1736, 46810), (1922, 42280), (2114, 38440), (2170, 37448), (2416, 33635), (2480, 32767), (3020, 26908), (3472, 23405), (3844, 21140), (4228, 19220), (4340, 18724), (4681, 17360), (4805, 16912), (5285, 15376), (6040, 13454), (6727, 12080), (7688, 10570), (8456, 9610), (8680, 9362)]