81310780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{140191}}^1$

素因数の和:140229

約数の個数: 24

約数和(自身を含む): 176641920

約数和(自身を除く): 95331140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 140191, 280382, 560764, 700955, 1401910, 2803820, 4065539, 8131078, 16262156, 20327695, 40655390, 81310780]

約数ペア:

[(1, 81310780), (2, 40655390), (4, 20327695), (5, 16262156), (10, 8131078), (20, 4065539), (29, 2803820), (58, 1401910), (116, 700955), (145, 560764), (290, 280382), (580, 140191)]