20397320

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22171}}^1$

素因数の和:22205

約数の個数: 32

約数和(自身を含む): 47891520

約数和(自身を除く): 27494200

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22171, 44342, 88684, 110855, 177368, 221710, 443420, 509933, 886840, 1019866, 2039732, 2549665, 4079464, 5099330, 10198660, 20397320]

約数ペア:

[(1, 20397320), (2, 10198660), (4, 5099330), (5, 4079464), (8, 2549665), (10, 2039732), (20, 1019866), (23, 886840), (40, 509933), (46, 443420), (92, 221710), (115, 177368), (184, 110855), (230, 88684), (460, 44342), (920, 22171)]