256697515

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{1303}}^1$

素因数の和:1411

約数の個数: 24

約数和(自身を含む): 326307744

約数和(自身を除く): 69610229

約数列:

[1, 5, 31, 41, 155, 205, 961, 1271, 1303, 4805, 6355, 6515, 39401, 40393, 53423, 197005, 201965, 267115, 1252183, 1656113, 6260915, 8280565, 51339503, 256697515]

約数ペア:

[(1, 256697515), (5, 51339503), (31, 8280565), (41, 6260915), (155, 1656113), (205, 1252183), (961, 267115), (1271, 201965), (1303, 197005), (4805, 53423), (6355, 40393), (6515, 39401)]