221068480

素因数分解:

$2^6\times 5^1\times {\mathrm{690839}}^1$

素因数の和:690856

約数の個数: 28

約数和(自身を含む): 526420080

約数和(自身を除く): 305351600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 690839, 1381678, 2763356, 3454195, 5526712, 6908390, 11053424, 13816780, 22106848, 27633560, 44213696, 55267120, 110534240, 221068480]

約数ペア:

[(1, 221068480), (2, 110534240), (4, 55267120), (5, 44213696), (8, 27633560), (10, 22106848), (16, 13816780), (20, 11053424), (32, 6908390), (40, 5526712), (64, 3454195), (80, 2763356), (160, 1381678), (320, 690839)]