128211890

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{557443}}^1$

素因数の和:557473

約数の個数: 16

約数和(自身を含む): 240815808

約数和(自身を除く): 112603918

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 557443, 1114886, 2787215, 5574430, 12821189, 25642378, 64105945, 128211890]

約数ペア:

[(1, 128211890), (2, 64105945), (5, 25642378), (10, 12821189), (23, 5574430), (46, 2787215), (115, 1114886), (230, 557443)]