121761790

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{136811}}^1$

素因数の和:136907

約数の個数: 16

約数和(自身を含む): 221635440

約数和(自身を除く): 99873650

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 136811, 273622, 684055, 1368110, 12176179, 24352358, 60880895, 121761790]

約数ペア:

[(1, 121761790), (2, 60880895), (5, 24352358), (10, 12176179), (89, 1368110), (178, 684055), (445, 273622), (890, 136811)]