61631405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 83655936

約数和(自身を除く): 22024531

約数列:

[1, 5, 11, 41, 55, 151, 181, 205, 451, 755, 905, 1661, 1991, 2255, 6191, 7421, 8305, 9955, 27331, 30955, 37105, 68101, 81631, 136655, 300641, 340505, 408155, 1120571, 1503205, 5602855, 12326281, 61631405]

約数ペア:

[(1, 61631405), (5, 12326281), (11, 5602855), (41, 1503205), (55, 1120571), (151, 408155), (181, 340505), (205, 300641), (451, 136655), (755, 81631), (905, 68101), (1661, 37105), (1991, 30955), (2255, 27331), (6191, 9955), (7421, 8305)]