128647210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{414991}}^1$

素因数の和:415029

約数の個数: 16

約数和(自身を含む): 239035392

約数和(自身を除く): 110388182

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 414991, 829982, 2074955, 4149910, 12864721, 25729442, 64323605, 128647210]

約数ペア:

[(1, 128647210), (2, 64323605), (5, 25729442), (10, 12864721), (31, 4149910), (62, 2074955), (155, 829982), (310, 414991)]