19515520

素因数分解:

$2^7\times 5^1\times {\mathrm{30493}}^1$

素因数の和:30512

約数の個数: 32

約数和(自身を含む): 46655820

約数和(自身を除く): 27140300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30493, 60986, 121972, 152465, 243944, 304930, 487888, 609860, 975776, 1219720, 1951552, 2439440, 3903104, 4878880, 9757760, 19515520]

約数ペア:

[(1, 19515520), (2, 9757760), (4, 4878880), (5, 3903104), (8, 2439440), (10, 1951552), (16, 1219720), (20, 975776), (32, 609860), (40, 487888), (64, 304930), (80, 243944), (128, 152465), (160, 121972), (320, 60986), (640, 30493)]