77972905

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{881}}^1$

素因数の和:1488

約数の個数: 16

約数和(自身を含む): 96864768

約数和(自身を除く): 18891863

約数列:

[1, 5, 31, 155, 571, 881, 2855, 4405, 17701, 27311, 88505, 136555, 503051, 2515255, 15594581, 77972905]

約数ペア:

[(1, 77972905), (5, 15594581), (31, 2515255), (155, 503051), (571, 136555), (881, 88505), (2855, 27311), (4405, 17701)]