639865024

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{243851}}^1$

素因数の和:243904

約数の個数: 28

約数和(自身を含む): 1300706568

約数和(自身を除く): 660841544

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 164, 328, 656, 1312, 2624, 243851, 487702, 975404, 1950808, 3901616, 7803232, 9997891, 15606464, 19995782, 39991564, 79983128, 159966256, 319932512, 639865024]

約数ペア:

[(1, 639865024), (2, 319932512), (4, 159966256), (8, 79983128), (16, 39991564), (32, 19995782), (41, 15606464), (64, 9997891), (82, 7803232), (164, 3901616), (328, 1950808), (656, 975404), (1312, 487702), (2624, 243851)]