15351320

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1721}}^1$

素因数の和:1955

約数の個数: 32

約数和(自身を含む): 34715520

約数和(自身を除く): 19364200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1721, 1784, 2230, 3442, 4460, 6884, 8605, 8920, 13768, 17210, 34420, 68840, 383783, 767566, 1535132, 1918915, 3070264, 3837830, 7675660, 15351320]

約数ペア:

[(1, 15351320), (2, 7675660), (4, 3837830), (5, 3070264), (8, 1918915), (10, 1535132), (20, 767566), (40, 383783), (223, 68840), (446, 34420), (892, 17210), (1115, 13768), (1721, 8920), (1784, 8605), (2230, 6884), (3442, 4460)]