81643660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583169}}^1$

素因数の和:583185

約数の個数: 24

約数和(自身を含む): 195945120

約数和(自身を除く): 114301460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583169, 1166338, 2332676, 2915845, 4082183, 5831690, 8164366, 11663380, 16328732, 20410915, 40821830, 81643660]

約数ペア:

[(1, 81643660), (2, 40821830), (4, 20410915), (5, 16328732), (7, 11663380), (10, 8164366), (14, 5831690), (20, 4082183), (28, 2915845), (35, 2332676), (70, 1166338), (140, 583169)]