81404288

素因数分解:

$2^7\times 7^2\times {\mathrm{12979}}^1$

素因数の和:13007

約数の個数: 48

約数和(自身を含む): 188664300

約数和(自身を除く): 107260012

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 6272, 12979, 25958, 51916, 90853, 103832, 181706, 207664, 363412, 415328, 635971, 726824, 830656, 1271942, 1453648, 1661312, 2543884, 2907296, 5087768, 5814592, 10175536, 11629184, 20351072, 40702144, 81404288]

約数ペア:

[(1, 81404288), (2, 40702144), (4, 20351072), (7, 11629184), (8, 10175536), (14, 5814592), (16, 5087768), (28, 2907296), (32, 2543884), (49, 1661312), (56, 1453648), (64, 1271942), (98, 830656), (112, 726824), (128, 635971), (196, 415328), (224, 363412), (392, 207664), (448, 181706), (784, 103832), (896, 90853), (1568, 51916), (3136, 25958), (6272, 12979)]