131573264

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{200569}}^1$

素因数の和:200618

約数の個数: 20

約数和(自身を含む): 261142140

約数和(自身を除く): 129568876

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 200569, 401138, 802276, 1604552, 3209104, 8223329, 16446658, 32893316, 65786632, 131573264]

約数ペア:

[(1, 131573264), (2, 65786632), (4, 32893316), (8, 16446658), (16, 8223329), (41, 3209104), (82, 1604552), (164, 802276), (328, 401138), (656, 200569)]