130880

素因数分解:

$2^6\times 5^1\times {\mathrm{409}}^1$

素因数の和:426

約数の個数: 28

約数和(自身を含む): 312420

約数和(自身を除く): 181540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 13088, 16360, 26176, 32720, 65440, 130880]

約数ペア:

[(1, 130880), (2, 65440), (4, 32720), (5, 26176), (8, 16360), (10, 13088), (16, 8180), (20, 6544), (32, 4090), (40, 3272), (64, 2045), (80, 1636), (160, 818), (320, 409)]