257354520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2144621}}^1$

素因数の和:2144635

約数の個数: 32

約数和(自身を含む): 772063920

約数和(自身を除く): 514709400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2144621, 4289242, 6433863, 8578484, 10723105, 12867726, 17156968, 21446210, 25735452, 32169315, 42892420, 51470904, 64338630, 85784840, 128677260, 257354520]

約数ペア:

[(1, 257354520), (2, 128677260), (3, 85784840), (4, 64338630), (5, 51470904), (6, 42892420), (8, 32169315), (10, 25735452), (12, 21446210), (15, 17156968), (20, 12867726), (24, 10723105), (30, 8578484), (40, 6433863), (60, 4289242), (120, 2144621)]