71661520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:309

約数の個数: 120

約数和(自身を含む): 196815528

約数和(自身を除く): 125154008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 101, 112, 140, 181, 196, 202, 245, 280, 362, 392, 404, 490, 505, 560, 707, 724, 784, 808, 905, 980, 1010, 1267, 1414, 1448, 1616, 1810, 1960, 2020, 2534, 2828, 2896, 3535, 3620, 3920, 4040, 4949, 5068, 5656, 6335, 7070, 7240, 8080, 8869, 9898, 10136, 11312, 12670, 14140, 14480, 17738, 18281, 19796, 20272, 24745, 25340, 28280, 35476, 36562, 39592, 44345, 49490, 50680, 56560, 70952, 73124, 79184, 88690, 91405, 98980, 101360, 127967, 141904, 146248, 177380, 182810, 197960, 255934, 292496, 354760, 365620, 395920, 511868, 639835, 709520, 731240, 895769, 1023736, 1279670, 1462480, 1791538, 2047472, 2559340, 3583076, 4478845, 5118680, 7166152, 8957690, 10237360, 14332304, 17915380, 35830760, 71661520]

約数ペア:

[(1, 71661520), (2, 35830760), (4, 17915380), (5, 14332304), (7, 10237360), (8, 8957690), (10, 7166152), (14, 5118680), (16, 4478845), (20, 3583076), (28, 2559340), (35, 2047472), (40, 1791538), (49, 1462480), (56, 1279670), (70, 1023736), (80, 895769), (98, 731240), (101, 709520), (112, 639835), (140, 511868), (181, 395920), (196, 365620), (202, 354760), (245, 292496), (280, 255934), (362, 197960), (392, 182810), (404, 177380), (490, 146248), (505, 141904), (560, 127967), (707, 101360), (724, 98980), (784, 91405), (808, 88690), (905, 79184), (980, 73124), (1010, 70952), (1267, 56560), (1414, 50680), (1448, 49490), (1616, 44345), (1810, 39592), (1960, 36562), (2020, 35476), (2534, 28280), (2828, 25340), (2896, 24745), (3535, 20272), (3620, 19796), (3920, 18281), (4040, 17738), (4949, 14480), (5068, 14140), (5656, 12670), (6335, 11312), (7070, 10136), (7240, 9898), (8080, 8869)]