71721328

素因数分解:

$2^4\times 7^1\times {\mathrm{640369}}^1$

素因数の和:640384

約数の個数: 20

約数和(自身を含む): 158811760

約数和(自身を除く): 87090432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 640369, 1280738, 2561476, 4482583, 5122952, 8965166, 10245904, 17930332, 35860664, 71721328]

約数ペア:

[(1, 71721328), (2, 35860664), (4, 17930332), (7, 10245904), (8, 8965166), (14, 5122952), (16, 4482583), (28, 2561476), (56, 1280738), (112, 640369)]