261534694

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{659}}^1\times {\mathrm{3253}}^1$

素因数の和:3975

約数の個数: 16

約数和(自身を含む): 399461040

約数和(自身を除く): 137926346

約数列:

[1, 2, 61, 122, 659, 1318, 3253, 6506, 40199, 80398, 198433, 396866, 2143727, 4287454, 130767347, 261534694]

約数ペア:

[(1, 261534694), (2, 130767347), (61, 4287454), (122, 2143727), (659, 396866), (1318, 198433), (3253, 80398), (6506, 40199)]