81309095

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{21313}}^1$

素因数の和:21434

約数の個数: 16

約数和(自身を含む): 112537920

約数和(自身を除く): 31228825

約数列:

[1, 5, 7, 35, 109, 545, 763, 3815, 21313, 106565, 149191, 745955, 2323117, 11615585, 16261819, 81309095]

約数ペア:

[(1, 81309095), (5, 16261819), (7, 11615585), (35, 2323117), (109, 745955), (545, 149191), (763, 106565), (3815, 21313)]