257702970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1227157}}^1$

素因数の和:1227174

約数の個数: 32

約数和(自身を含む): 706843008

約数和(自身を除く): 449140038

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1227157, 2454314, 3681471, 6135785, 7362942, 8590099, 12271570, 17180198, 18407355, 25770297, 36814710, 42950495, 51540594, 85900990, 128851485, 257702970]

約数ペア:

[(1, 257702970), (2, 128851485), (3, 85900990), (5, 51540594), (6, 42950495), (7, 36814710), (10, 25770297), (14, 18407355), (15, 17180198), (21, 12271570), (30, 8590099), (35, 7362942), (42, 6135785), (70, 3681471), (105, 2454314), (210, 1227157)]