81389015

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{1021}}^1$

素因数の和:1282

約数の個数: 16

約数和(自身を含む): 99338400

約数和(自身を除く): 17949385

約数列:

[1, 5, 107, 149, 535, 745, 1021, 5105, 15943, 79715, 109247, 152129, 546235, 760645, 16277803, 81389015]

約数ペア:

[(1, 81389015), (5, 16277803), (107, 760645), (149, 546235), (535, 152129), (745, 109247), (1021, 79715), (5105, 15943)]