19519440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{81331}}^1$

素因数の和:81347

約数の個数: 40

約数和(自身を含む): 60511008

約数和(自身を除く): 40991568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 81331, 162662, 243993, 325324, 406655, 487986, 650648, 813310, 975972, 1219965, 1301296, 1626620, 1951944, 2439930, 3253240, 3903888, 4879860, 6506480, 9759720, 19519440]

約数ペア:

[(1, 19519440), (2, 9759720), (3, 6506480), (4, 4879860), (5, 3903888), (6, 3253240), (8, 2439930), (10, 1951944), (12, 1626620), (15, 1301296), (16, 1219965), (20, 975972), (24, 813310), (30, 650648), (40, 487986), (48, 406655), (60, 325324), (80, 243993), (120, 162662), (240, 81331)]