7980142

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:651

約数の個数: 16

約数和(自身を含む): 12276000

約数和(自身を除く): 4295858

約数列:

[1, 2, 61, 122, 149, 298, 439, 878, 9089, 18178, 26779, 53558, 65411, 130822, 3990071, 7980142]

約数ペア:

[(1, 7980142), (2, 3990071), (61, 130822), (122, 65411), (149, 53558), (298, 26779), (439, 18178), (878, 9089)]