77866990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{87491}}^1$

素因数の和:87587

約数の個数: 16

約数和(自身を含む): 141737040

約数和(自身を除く): 63870050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 87491, 174982, 437455, 874910, 7786699, 15573398, 38933495, 77866990]

約数ペア:

[(1, 77866990), (2, 38933495), (5, 15573398), (10, 7786699), (89, 874910), (178, 437455), (445, 174982), (890, 87491)]