2158480

素因数分解:

$2^4\times 5^1\times {\mathrm{26981}}^1$

素因数の和:26994

約数の個数: 20

約数和(自身を含む): 5018652

約数和(自身を除く): 2860172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26981, 53962, 107924, 134905, 215848, 269810, 431696, 539620, 1079240, 2158480]

約数ペア:

[(1, 2158480), (2, 1079240), (4, 539620), (5, 431696), (8, 269810), (10, 215848), (16, 134905), (20, 107924), (40, 53962), (80, 26981)]