213435520

素因数分解:

$2^7\times 5^1\times {\mathrm{333493}}^1$

素因数の和:333512

約数の個数: 32

約数和(自身を含む): 510245820

約数和(自身を除く): 296810300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 333493, 666986, 1333972, 1667465, 2667944, 3334930, 5335888, 6669860, 10671776, 13339720, 21343552, 26679440, 42687104, 53358880, 106717760, 213435520]

約数ペア:

[(1, 213435520), (2, 106717760), (4, 53358880), (5, 42687104), (8, 26679440), (10, 21343552), (16, 13339720), (20, 10671776), (32, 6669860), (40, 5335888), (64, 3334930), (80, 2667944), (128, 1667465), (160, 1333972), (320, 666986), (640, 333493)]