16821520

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{743}}^1$

素因数の和:1039

約数の個数: 40

約数和(自身を含む): 39301056

約数和(自身を除く): 22479536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 743, 1132, 1415, 1486, 2264, 2830, 2972, 3715, 4528, 5660, 5944, 7430, 11320, 11888, 14860, 22640, 29720, 59440, 210269, 420538, 841076, 1051345, 1682152, 2102690, 3364304, 4205380, 8410760, 16821520]

約数ペア:

[(1, 16821520), (2, 8410760), (4, 4205380), (5, 3364304), (8, 2102690), (10, 1682152), (16, 1051345), (20, 841076), (40, 420538), (80, 210269), (283, 59440), (566, 29720), (743, 22640), (1132, 14860), (1415, 11888), (1486, 11320), (2264, 7430), (2830, 5944), (2972, 5660), (3715, 4528)]