281340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{521}}^1$

素因数の和:539

約数の個数: 48

約数和(自身を含む): 876960

約数和(自身を除く): 595620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 521, 540, 1042, 1563, 2084, 2605, 3126, 4689, 5210, 6252, 7815, 9378, 10420, 14067, 15630, 18756, 23445, 28134, 31260, 46890, 56268, 70335, 93780, 140670, 281340]

約数ペア:

[(1, 281340), (2, 140670), (3, 93780), (4, 70335), (5, 56268), (6, 46890), (9, 31260), (10, 28134), (12, 23445), (15, 18756), (18, 15630), (20, 14067), (27, 10420), (30, 9378), (36, 7815), (45, 6252), (54, 5210), (60, 4689), (90, 3126), (108, 2605), (135, 2084), (180, 1563), (270, 1042), (521, 540)]