80821216

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:264

約数の個数: 96

約数和(自身を含む): 191213568

約数和(自身を除く): 110392352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 103, 112, 113, 124, 206, 217, 224, 226, 248, 412, 434, 452, 496, 721, 791, 824, 868, 904, 992, 1442, 1582, 1648, 1736, 1808, 2884, 3164, 3193, 3296, 3472, 3503, 3616, 5768, 6328, 6386, 6944, 7006, 11536, 11639, 12656, 12772, 14012, 22351, 23072, 23278, 24521, 25312, 25544, 28024, 44702, 46556, 49042, 51088, 56048, 81473, 89404, 93112, 98084, 102176, 112096, 162946, 178808, 186224, 196168, 325892, 357616, 360809, 372448, 392336, 651784, 715232, 721618, 784672, 1303568, 1443236, 2525663, 2607136, 2886472, 5051326, 5772944, 10102652, 11545888, 20205304, 40410608, 80821216]

約数ペア:

[(1, 80821216), (2, 40410608), (4, 20205304), (7, 11545888), (8, 10102652), (14, 5772944), (16, 5051326), (28, 2886472), (31, 2607136), (32, 2525663), (56, 1443236), (62, 1303568), (103, 784672), (112, 721618), (113, 715232), (124, 651784), (206, 392336), (217, 372448), (224, 360809), (226, 357616), (248, 325892), (412, 196168), (434, 186224), (452, 178808), (496, 162946), (721, 112096), (791, 102176), (824, 98084), (868, 93112), (904, 89404), (992, 81473), (1442, 56048), (1582, 51088), (1648, 49042), (1736, 46556), (1808, 44702), (2884, 28024), (3164, 25544), (3193, 25312), (3296, 24521), (3472, 23278), (3503, 23072), (3616, 22351), (5768, 14012), (6328, 12772), (6386, 12656), (6944, 11639), (7006, 11536)]