128771210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{415391}}^1$

素因数の和:415429

約数の個数: 16

約数和(自身を含む): 239265792

約数和(自身を除く): 110494582

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 415391, 830782, 2076955, 4153910, 12877121, 25754242, 64385605, 128771210]

約数ペア:

[(1, 128771210), (2, 64385605), (5, 25754242), (10, 12877121), (31, 4153910), (62, 2076955), (155, 830782), (310, 415391)]