128221490

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{97879}}^1$

素因数の和:98017

約数の個数: 16

約数和(自身を含む): 232562880

約数和(自身を除く): 104341390

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 97879, 195758, 489395, 978790, 12822149, 25644298, 64110745, 128221490]

約数ペア:

[(1, 128221490), (2, 64110745), (5, 25644298), (10, 12822149), (131, 978790), (262, 489395), (655, 195758), (1310, 97879)]