81123476

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{16007}}^1$

素因数の和:16199

約数の個数: 24

約数和(自身を含む): 163153536

約数和(自身を除く): 82030060

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 5068, 16007, 32014, 64028, 112049, 224098, 448196, 2897267, 5794534, 11589068, 20280869, 40561738, 81123476]

約数ペア:

[(1, 81123476), (2, 40561738), (4, 20280869), (7, 11589068), (14, 5794534), (28, 2897267), (181, 448196), (362, 224098), (724, 112049), (1267, 64028), (2534, 32014), (5068, 16007)]