166794640

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12791}}^1$

素因数の和:12967

約数の個数: 40

約数和(自身を含む): 390207168

約数和(自身を除く): 223412528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 12791, 13040, 25582, 51164, 63955, 102328, 127910, 204656, 255820, 511640, 1023280, 2084933, 4169866, 8339732, 10424665, 16679464, 20849330, 33358928, 41698660, 83397320, 166794640]

約数ペア:

[(1, 166794640), (2, 83397320), (4, 41698660), (5, 33358928), (8, 20849330), (10, 16679464), (16, 10424665), (20, 8339732), (40, 4169866), (80, 2084933), (163, 1023280), (326, 511640), (652, 255820), (815, 204656), (1304, 127910), (1630, 102328), (2608, 63955), (3260, 51164), (6520, 25582), (12791, 13040)]