28780990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{411157}}^1$

素因数の和:411171

約数の個数: 16

約数和(自身を含む): 59206752

約数和(自身を除く): 30425762

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 411157, 822314, 2055785, 2878099, 4111570, 5756198, 14390495, 28780990]

約数ペア:

[(1, 28780990), (2, 14390495), (5, 5756198), (7, 4111570), (10, 2878099), (14, 2055785), (35, 822314), (70, 411157)]