81265408

素因数分解:

$2^8\times 7^1\times {\mathrm{101}}^1\times {\mathrm{449}}^1$

素因数の和:573

約数の個数: 72

約数和(自身を含む): 187639200

約数和(自身を除く): 106373792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 101, 112, 128, 202, 224, 256, 404, 448, 449, 707, 808, 896, 898, 1414, 1616, 1792, 1796, 2828, 3143, 3232, 3592, 5656, 6286, 6464, 7184, 11312, 12572, 12928, 14368, 22624, 25144, 25856, 28736, 45248, 45349, 50288, 57472, 90496, 90698, 100576, 114944, 180992, 181396, 201152, 317443, 362792, 402304, 634886, 725584, 804608, 1269772, 1451168, 2539544, 2902336, 5079088, 5804672, 10158176, 11609344, 20316352, 40632704, 81265408]

約数ペア:

[(1, 81265408), (2, 40632704), (4, 20316352), (7, 11609344), (8, 10158176), (14, 5804672), (16, 5079088), (28, 2902336), (32, 2539544), (56, 1451168), (64, 1269772), (101, 804608), (112, 725584), (128, 634886), (202, 402304), (224, 362792), (256, 317443), (404, 201152), (448, 181396), (449, 180992), (707, 114944), (808, 100576), (896, 90698), (898, 90496), (1414, 57472), (1616, 50288), (1792, 45349), (1796, 45248), (2828, 28736), (3143, 25856), (3232, 25144), (3592, 22624), (5656, 14368), (6286, 12928), (6464, 12572), (7184, 11312)]