81456004

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{32687}}^1$

素因数の和:32787

約数の個数: 24

約数和(自身を含む): 164747520

約数和(自身を除く): 83291516

約数列:

[1, 2, 4, 7, 14, 28, 89, 178, 356, 623, 1246, 2492, 32687, 65374, 130748, 228809, 457618, 915236, 2909143, 5818286, 11636572, 20364001, 40728002, 81456004]

約数ペア:

[(1, 81456004), (2, 40728002), (4, 20364001), (7, 11636572), (14, 5818286), (28, 2909143), (89, 915236), (178, 457618), (356, 228809), (623, 130748), (1246, 65374), (2492, 32687)]